Question

1. 3x + 7 = 13 (x = -2; x = 2; x = 5)

Answer 1

Answer: x=2

Explanation:

I am assuming you are asking which x fits the equation. To see if x works for the equation, you would plug it in.

x=-2

3(-2)+7=13

-6+7=13

1≠13

x=2

3(2)+7=13

6+7=13

13=13

x=5

3(5)+7=13

15+7=13

22≠13