Question

2(3x+7)-(5x+1)-51-18x

Answer 1

olá!

 2(3x + 7) - (5x+1) - 51 - 18x = 0

6x + 14 - 5x - 1 - 51 - 18x = 0

6x - 5x - 18x = - 14 + 1 +51

  - 17x = 38 * ( - 1)

    17x = - 38

       x =  -38 / 17

Bons estudos!