Question

Qual o valor do x na equação (2x/3 -1) = x- (x/5 -1)

Answer 1

2x/3 - 1 = x - (x/5 -1)

(2x-3)/3 = x - (x-5/5)

(2x-3)/3 = x + (-x +5)/5

(2x-3)/3 = (5x -x +5)/5

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

10x - 15 = 12x +15

12x - 10x = -15 -15

2x = -30

x = -15