Question

(X-5):10+(1-2x):5=(3-x):4 resposta

Answer 1

(x-5)/10 + (1-2x)/5 = (3-x)/4 

mmc(4,5,10)=20 ... multiplicando por 20 , 

2(x-5) + 4(1-2x)= 5(3-x) 
2x-10+4-8x=15-5x 

2x-8x+5x=15+10-4 

-x=21 

x=-21