Question

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

Answer 1

Tira o MMC de 10, 5 e 4 = 20

20/10 = 2
20/5 = 4
20/4 = 5

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

2x-10+4-8x = 15-5x
x = 21