1/5х+11=1-3/5х z/3+8=2z/3 z/8-z/4=3
1/5x+3/5x=1-11 4/5x=-10 x=-10*5:4 x=-12.5 2z/3-z/3=8 z/3=8 z=8*3 z=24 z/8-z/4=3 z/8-2z/8=3 -z/8=3 z=-3*8 z=-24