Question

3(1-x)-2(x+1)=9(x-1)+3 me ajudem tenho um trabalho que tem essa questao preciso entregar amanha

Answer 1

3.(1 - x) - 2.(x + 1) = 9.(x - 1) + 3

3 - 3x - 2x - 2 = 9x - 9 + 3
1 - 5x = 9x - 6
-5x - 9x = -6 - 1
-14x = -7 . (-1)
x = 7/14
x = 1/2

Answer 2

                      3(1-x) -2(x+1) = 9(x-1) + 3
                      3 - 3x - 2x - 2 = 9x - 9 + 3
                         - 5x + 1 =  9x - 6
                         - 5x - 9x = -6 - 1
                               -14x = - 7 (-1)
                                 14x = 7
                                     x = 7/14 --> x = 1/2