Question

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

Answer 1

(x-5)/10 + (1-2x)/5 = (3-x)/4 ----------> MMC (denominadores) 10, 5, 4 = 20 
2(x-5)/20 +4(1-2x)/20 = 5(3-x)/20 
2x-10 + 4-8x = 15-5x 

2x-8x+5x = 15+10-4 
-x = 21 
x = -21 

Resposta o valor de x = -21