4x-3=9, 3x=12-x. 9-2x=4x-19, 4(x-3)=x+5, 7,6+4x=6(x-1,6), 3(2y+3)-14=16, 9-2x=9x-x, 6+2x=2x-3
4x-3=9 4x=12 x=3.
4х-3=9 4х=12 х=3 3х=12-х 4х=12 х=3