Question

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

Answer 1

(x-5)/10 + (1-2x)/5 = (3-x)/4 ------mmc(4,5,10) = 20
2(x-5) + 4(1-2x) = 5(3-x)
2x - 10 + 4 - 8x = 15 - 5x
-6x + 5x = 15 + 10 - 4
         -x  = 21
          x = - 21