7 класс,решите уравнения

1) 2(x-3y)=0 x=-4-y x-3y=0 x=-4-y -4-y-3y=0 x=-4-y -4-4y=0 x=-4-y 4y=-4 x=-4-y y=-1 x=-4-1 y=-1 x=-5 2) 4x-3y=14 x=-2-2y 4(-2-2y)-3y=14 x=-2-2y -8-8y-3y=14 x=-2-2y -11y=14+8 x=-2-2y -11y=22 x=-2-2y y=-22:11 x=-2-2y y=-2 x=-2-2(-2) y=-2 x=-2+4 y=-2 x=2 3) x-x+5y-4y=3-2 x=2-4y y=1 x=2-4y y=1 x=2-4 y=1 x=-2