### Home > CC3 > Chapter 3 > Lesson 3.2.1 > Problem 3-75

3-75.

For each equation, a possible solution is given. Check to see if the given solution is correct.

If

, then does ?Substitute the possible answer for

.If the numbers on both sides of the equation sign are the same once simplified, then the possible answer is correct.

Yes

If

, then does ?Follow the steps in part (a).

No

If

, then does ?Follow the steps in part (a).

If

, then does ?How does the negative in front of the parentheses change what is inside?

Follow the steps in part (a).