Question

6x+9=2x-31 ? Qual Ea Resposta ?

Answer 1

6×+ 9= 2× - 31

6× -2× = - 31 - 9

4× = -40

×= - 10

Answer 2

6x + 9= 2x -31
6x-2x=-31-9
4x=-40
x=-40/-4
x=20