Question

me ajudem preciso pra amanhã urgente !!! vale ponto.

Answer 1

05)

(2x -1)/3 + 4x/5 = x/3        mmc = 15

5*(2x -1) + 3*( 4x) = 5x

10x - 5 + 12x = 5x
10x + 12x - 5x = 5
17x = 5
x = 5/17......

06)

2x - (3x -7)/2 = (x +1)/2 + 3          mmc = 2

4x - 6x - 14 = x + 1 + 6
-2x - x = 7 + 14
-3x = 21    *(-1)
3x = -21
x = -21/3
x = -7......