Question

Question 7 (Essay Worth 5 points)

(7.03)
An equation is shown below:

4(2x - 5) + 15 = 11

Write the steps you will use to solve the equation and explain each step.

Answer 1

Well, the first thing I would do is subtract 15 on each side to simplify the equation. Once we do that we get 4(2x-5)=-4. Now we multiply 2x and negative 5 by positive 4 to get 8x minus twenty. The equation should now read 8x - 20 = -4. We now add 20 to both sides to get 8x=16. Finally we divide 16 by 8 to get x. If you do so, you should get x=2.

Answer 2

Answer:

4(2x - 5) + 15 = 11

-Simplify                                                                                                                                                                                                                                                                                                                                                                                              4(2x - 5) = -4

Multiply from negative 5 by positive 4, we get 8x minus 20.

8x - 20 = -4

Now we add 20 to both sides

8x = 16

Now to get our x, we divide the 16 by 8 in order to get the x.

8 / 16 = 2

so...

x = 2

Step-by-step explanation:

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