Question

Resolva as equações:

A- 7 (x-5) = -40

B- 2 (x-3) = -x-1

C- 11(x+2) -3 (x/2 - 2x/3) = 8

D- -12(x/4+2x/3) = 36

Answer 1

7 (x-5) = -40 
7x-35=-40
7x=-40+35
7x=-5
         -5
x= ______
          7