5(3-2у)-4(9-у)=3(у+5) 15-10y-36+4y=3y+15 15-10y-36+4y-3y-15=0 -9y-36=0 -9y=36, y= 36-9) y= -4 14(2х-3)-5(х+4)=2(3х+5)+5х 28x-42-5x-20=6x+10+5x 28x-42-5x-20-6x-10-5x=0 12x-72=0 12x=72 x=72:12 x=6