Помогите пожалустааа
4(х+2)-7(2х-1)=30-9(3х-4)
8(7-4у)-19=7(4у+1)-5(8у-1)
3(2х+1)+7(6х-1)=23+5(12х-7)
17(3х+4)+13(5-4х)=11(7х-11)+20
4x+8-14x+7=30-27x+36
4x-14x+27x=30-8-7+36
17x=51
x=3
56-32y-19=28y+7-40y+5
-32y-28y+40y=-56+19+7+5
-20y=-25
20y=25
y=1.25
6x+3+42x-7=23+60x-35
6x+42x-60x=23-3+7-35
-12x=-8
12x=8
x=0.66
51x+68+65-52x=77x-121+20
51x-52x-77x=-121-68-65+20
-78x=-234
78x=234
4x + 2x - 14x +7 = 30- 27x -36 ;
-12x-27x=-6-7
-39x=-13