x-5/4 - x+1/2 = 5-x / - ułamek

x-5/4 - x+1/2 = 5-x 7/4 = 5 - x 7/4 = 20/4 - x -13/4 = -x x = 3 1/4 (trzy i jedna czwarta)

4x-5-4x+2=20-4x -3=20-4x -23=-4x/:(-4) x=5 i 3/4

x-5/4 - x+1/2 = 5-x x + x - x = 5 + 5/4 - 1/2 x = 5 + 5/4 - 2/4 x= 5 3/4