Question

An equation is shown below:

-2(4x - 1) - 7 = 5

Which statement shows a correct next step in solving the equation?

The equation can become -2(4x - 1) = -2 by applying the distributive property.
The equation can become -2(4x - 1) = 12 by applying the addition property of equality.
The equation can become -2(4x - 1) = 12 by applying the commutative property of addition
The equation can become -2(4x - 1) = -2 by applying the subtraction property of equality.

Answer 1

I know how to solve the equation but I don't get how to do the rounding thing or whatever its called that its doing at the end of the equation

Answer 2

What they are telling you to do next is to eliminate the -7 from the left side, so how would you do that?

Answer 3

-7+5?

Answer 4

Well, instead of adding -7 to the 5 you would just add 7 to the five, this will cancel the 7 on the left side.