x-5/8x=15 (3/8)x=15x=15*(8/3)x=40 1/5x+3/10x=1202/10x+3/10x=1205/10x=120x=120*2x=24020%x=30x=30/20%x=150(1-45%)x=1.9555%x=1.95x=1.95/0.55x=39/11