3(y+5)-2y=
3(2x+7)-(5x+11)=
6(6m-n)-2(m-5n)=
-12x-(2-8x)=
-(4x-1)+(3x-1)=
3(2x-1)+19=
10-2(3y+5)=
2-3(2z-1)=
3-y+2(5-y)=

3у+15-2у=у+156х+21-5x-11=x-1036m-6n-2m+10n=34m+4n-12x-2+8x=-4x-2-4x+1+3x-1=-x6x-3+19=6x+1610-6y-10=-6y2-6z+3=5-6z3-y+10-2y=13-3y