Which of the following shows the correct solution steps and solution to
7x – 4 = –18?

A.
7
x
−
4
=
−
1
8
7
x
−
4
+
4
=
−
1
8
+
4
7
x
=
−
2
2
7
x
7
=
−
2
2
7
x
=
−
2
2
7

7x−4
7x−4+4
7x
7
7x
​
x
​
=−18
=−18+4
=−22
=
7
−22
​
=
7
−22
​
​

B.
7
x
−
4
=
−
1
8
7
x
−
4
+
4
=
−
1
8
+
4
7
x
=
−
1
4
7
x
−
7
=
−
1
4
−
7
x
=
2

7x−4
7x−4+4
7x
−7
7x
​
x
​
=−18
=−18+4
=−14
=
−7
−14
​
=2
​

C.
7
x
−
4
=
−
1
8
7
x
−
4
+
4
=
−
1
8
+
4
7
x
=
−
1
4
7
x
7
=
−
1
4
7
x
=
−
2

7x−4
7x−4+4
7x
7
7x
​
x
​
=−18
=−18+4
=−14
=
7
−14
​
=−2
​

D.
7
x
−
4
=
−
1
8
7
x
−
4
−
4
=
−
1
8
−
4
7
x
=
−
1
4
7
x
7
=
−
1
4
7
x
=
−
2

7x−4
7x−4−4
7x
7
7x
​
x
​
=−18
=−18−4
=−14
=
7
−14
​
=−2
​

Final Answer: All Real Numbers

Steps/Reasons/Explanation:

Question: Solve for a. [tex]4(a + 3)=12 + 4a[/tex].

Step 1: Expand.

[tex]4a + 12 = 12 + 4a[/tex]

Step 2: Cancel [tex]4a[/tex] on both sides.

[tex]12 = 12[/tex]

Step 3: Since both sides equal, we would have infinitely many solutions.

~I hope I helped you :)~

Answer:1

Step-by-step explanation:1

Answer:

C is the answer

Step-by-step explanation:

Answer:

an equilateral triangle

Step-by-step explanation:

Answer:

The square root function

sqrt(144) or √144 produces a single positive value, 12.  

However if you have an equation

x² = 144, then you have two possible values for x, 12 and -12.  

Two ways to look at it.  

x² - 144 = 0

Difference of two squares

(x+12)(x-12) = 0

x = -12, 12

x² = 144

x = ±√144

x = ±12

x = -12, 12

Answer:

12 and -12

Step-by-step explanation:

144 is a perfect square which means that a number multiplies to it with the same number. In this instance both 12 and -12 equal 144.

12 x 12 = 144

-12 x -12 = 144 (two negatives equal a positive)

Answer:

12×12=144

2years=144/12×100

2years=$120

Step-by-step explanation:

Answer:

The sales tax is 6.5% of the selling price of the book: 0.065($90.00) = $5.85.

Step-by-step explanation:

9514 1404 393

Answer:

  1

Step-by-step explanation:

The only integer factor common to 5 and 6 is 1.

__

This will be true for any pair of natural numbers that differ by 1.

Answer:

A

Step-by-step explanation:

the dots are at -5 an 6.

the dots are closed meaning that they are equal to. -5 is less than 6 and 6 is greater than -5. so the answer should be A

Answer:

y=x-2

Step-by-step explanation:

y= 0-2=-2

y= 1-2=-1

y= 2-2=0

(please mark me as brainliest)

Answer:

Step-by-step explanation:

nth term = 3n+2

a) first term = 3+2 = 5

Second term = 3(2)+2 = 8

Third term = 3(3) +2 = 11

b) tenth term = 3(10)+2 = 32

Answer:

The equations y=10x+250 and y=20x represent the situation.

Step-by-step explanation:

Given that:

Cost to rent the park = $250

Cost per person for t-shirt and snack = $10

Cost of participation = $20

y = cost

x = number of people

Cost for the organization;

y = 10x + 250

Amount generated from people's participation

y = 20x

Hence,

The equations y=10x+250 and y=20x represent the situation.

Answer:

Christmas is in 10 days!

Other:

Brainliest? Thanks!

Answer:3.51

Step-by-step explanation:

8/-1=-1/-1

=-8

the answer is -8

Answer:

y = |-3|

Step-by-step explanation:

TRUST ME

Answer:

-1,882384 x 10^6 or -1372^2

Step-by-step explanation:

Both forms equal -1882384.

Step-by-step explanation:

-5.9-2.72

=-2.88

it a write answer

Answer:

b There is No Solution for this system

Step-by-step explanation:

When graphing out equations, the two equations have to intersect at one point to have a solution. If they are parallel, it means that they will never intersect at one point and thus there is no solution for the system. A pair of lines would only have infinitely many solutions when both lines are at the same position travelling in the same direction, overlapping each other.

Answer:

[tex]m = -\frac{3}{2}[/tex]

Step-by-step explanation:

Given

x 2 4 6 8

y 1 -2 -5 -8

Required

Determine the slope

First, pick any two corresponding x and y values.

[tex](x_1,y_1) =(2,1)[/tex]

[tex](x_2,y_2) =(8,-8)\\[/tex]

The slope (m) is then calculated using:

[tex]m = \frac{y_1 - y_2}{x_1 - x_2}[/tex]

Substitute in, the x and y values

[tex]m = \frac{1 - (-8)}{2- 8}[/tex]

[tex]m = \frac{1 +8}{-6}[/tex]

[tex]m = \frac{9}{-6}[/tex]

[tex]m = -\frac{9}{6}[/tex]

Divide numerator and denominator by 3

[tex]m = -\frac{9/3}{6/3}[/tex]

[tex]m = -\frac{3}{2}[/tex]

Hence, the slope is -3/2

Answer:

Is -3/2.

Step-by-step explanation:

I just took the test!

Answer:

x=  3x=17/4

Step-by-step explanation:

Answer:10.07

Step-by-step explanation: I got my answer by dividing 24 and 2.25. First, I set up my equation, 24 / 2.25. Then, i multiply 2.25 by 10, which was 22.5. Then i subtracted, which was 1.5 then i bring down my 0. 2.25 doesnt go into 1.50 so I add a 0. then i bring down a 0.

Answer:

Option A

Step-by-step explanation:

Jordan is 27 miles short of his biking goal.

This statement states that Jordan is 27 miles behind the goal.

Hayden went 27 miles over his goal.

This statement states that Hayden is 27 miles ahead of his goal.

Option A

Both are 27 miles away from their goal.

True.

Option B

Since, both were 27 miles away from their goal,

Statement is False.

Option C

Since, the goal was same both,

Given statement is False.

Option D

Goal was same for both Jordan and Hayden,

Statement is False.

Answer:

x=4

Step-by-step explanation: Because 3 times 4 is 12 plus 2 is 14.

Answer:

x=4

Step-by-step explanation:

First, you have to subtract 2 from both sides of the equation to isolate the variable. Then the equation becomes 3x=12. Next, you have to do the opposite of multiplication, which is division, and divide by 3 on both sides of the equation. 3x divided by 3 cancels out. 12 divided by 3 is 4. Therefore, x=4.

Answer:

b. is not a function

and for question 2 the answer is a.

Step-by-step explanation:

1. B is the answer because one of the inputs has more than one output

2. When you solve it and connect the dots it forms that kind of curve.

Answer:

K = -2

Step-by-step explanation:

K represents the y-intercept, which is where the line crosses the y axis. We can see from the y = -4x -2, that -2 is the y-intercept, because in y =  mx + b, b is the y -intercept.

~theLocoCoco

Answer:

slope = -2/3

Step-by-step explanation:

rise over run

Answer:

y-intercept: (2,0)

x-intercept: (0,3)

slope: -2/3

Step-by-step explanation: