2(7-y)+13=y ; 5-3(2x-1)=4x-22 ; 1,2x-7=6x-16,6 ; 2(1,2y+5)-1=2y+6,6 ; 1,7x +0,9=2x ; 9-2(x+4)=2x+13; -4(2+3x)+11=-15x-3 ; 5y+12=-3y+12 ; 0,2(3y+2)= 2,6y-1,6

-2(7-y)+13=y
-2(7-y)+13-y=0
-14+2y+13-y=0
-1+y=0
y=1

5-3(2x-1)=4x-22
5-6x+3-4x+22=0
30-10x=0
30=10x
x=3

1,2x-7=6x-16,6
1.2x-7-6x+16.6=0
-4.8x+9.6=0
-4.8x=9.6
x=2

2(1,2y+5)-1=2y+6,6
2.4y+10-1-2y-6.6=0
0.4y+2.4=0
y=6

1,7x +0,9=2x
1.7x+0.9+2x=0
3.7x=0.9
x=4

9-2(x+4)=2x+13
9-2x+8=2x+13
9-2x+8-2x+13=0
-4x+30=0
-4x=-30
x=7.5

-4(2+3x)+11=-15x-3
-8-12x+11+15x+3=0
6+3x=0
6=3x
x=2

5y+12=-3y+12
5y+12+3y-12=0
8y=0
y=0

0,2(3y+2)=2,6y-1,6
0.6y+0.4-2.6y+1.6=0
-2y+2=0
y=1