Question

Which equation has x=8 for a solution

2x + 3 = 13
4x + 6 = 38
3x - 5 = 29
5x - 8 = 48​

Answer 1

4x + 6=38 has x=8 for a solution


4(8) + 6=38

32 + 6=38

38=38

Answer 2

4x + 6 = 38

Explanation:

Substitute x in for x and see which equation is true

2x + 3 = 13

2*8+3 = 16+3 = 19 this is not 13 so it is false

4x + 6 = 38

4*8+6 = 32+6 = 38

This is true

3x - 5 = 29

3*8 -5 = 24-5 = 19

False

5x - 8 = 48

5*8-8 = 40-8 = 32

False​