Question

2×-4-8=4×

3×=×+1+7 preciso dessas resposta

Answer 1

2x - 4 - 8 = 4x

2x - 4x = 4 + 8

-2x = 12

x = 12/-2

x = -6

3x = x + 1 + 7

3x - x = 8

2x = 8

x = 8/2

x = 4