Question

A raiz da equação x-1/3 - 2x+1/5=1

Answer 1

Vejamos:

(x - 1)/3 - (2x + 1)/5 = 1
5.(x - 1)/15 -3.(2x + 1)/15 = 15/15
5.(x - 1) - 3.(2x + 1) = 15
5x - 5 - 6x - 3 = 15
5x - 6x = 15 + 5 + 3
-x = 23 (-1)
x = = -23