Question

Resolva as equações:

a) 5x -2(x-3) + 6 = x -15

b) -2x +3(x+2) -2x = x + 11​

Answer 1

Resposta: a) -27/2      b) -5/2

Explicação passo-a-passo:

a) 5x -2(x-3) + 6 = x -15

  5x-2x+6+6=x-15

  5x-2x-x=-6-6-15

  2x=-27

   x=-27/2

b) -2x +3(x+2) -2x = x + 11​

   -2x+3x+6-2x=x+11

   -2x+3x-2x-x=11-6

   -2x=5 .(-1)

    2x=-5

     x=-5/2