Question

(X-5)/10 + (1-2X)/5=(3-X)/4

Answer 1

$\frac{x-5}{10}+\frac{1-2x}{5}=\frac{3-x}{4}$

Multiplicando a equação por 20 (m.m.c entre 10, 5 e 4):

$\frac{20*(x-5)}{10}+\frac{20*(1-2x)}{5}=\frac{20*(3-x)}{4}$

$2*(x - 5) + 4*(1 - 2x) = 5*(3 - x)\\2x - 10 + 4 - 8x = 15 - 5x\\-6x-6=15-5x\\-6-15=-5x+6x\\-21=x$