Question

resolva: 6x - 7(1 - x) - (10x + 4) = 0

Answer 1

 
 
 
6x - 7(1 - x) - (10x + 4) = 0
6x - 7 + x - 10x - 4 = 0
      - 7 - 4 = 10x - 6x - x
         - 11 = 3x
            x =   - 11
                      3

Answer 2

6x - 7(1-x) - (10x + 4) = 0
6x - 7 + 7x - 10x - 4 = 0
6x + 7x - 10x = 0 + 7 + 4
3x = 11
x = 11 / 3