### Home > GC > Chapter 12 > Lesson 12.1.1 > Problem 12-7

12-7.

Add 5 to both sides.

*x* = 6

Remember that 16 is a perfect square, and there are two answers.

4 or −4

Distribute before simplifying.

*x* = 4

Multiply by the denominator.

30

Set equal to zero, then factor.

3, −3

Which numbers make this true?

3 or −5