Răspuns :
x-2=8,x=8+2=10,x=10; x-3=5,x=5+3=8,x=8; 2x-3=1,2x=1+3=4,2x=4,x=4/2=2 3x+1=-8,3x=-8-1,x=-9/3,x=-3 5x-7=-3,5x=-3+7,x=-4/5 -2x+3=8, -2x=8-3,-2x=5,x=5/-2