Question

Como resolver essa equaçao 6(x-7)-2(4x+2)=100

Answer 1

6.(x - 7) - 2.(4x + 2) = 100
6x - 42 - 8x - 4 = 100
6x - 8x - 42 - 4 = 100
-2x - 46 = 100
-2x = 100 + 46
-2x = 146
x = 146/-2
x = -73

Answer 2

6(x-7)-2(4x+2)=100
6x-42-8x-4=100
6x-8x=100+42+4
-2x=146 (-1)
2x=-146
x=-146/2
x=-73
Resposta: -73