1034.1)
6x-2(3x-1)=6x-6x+2=2,
3(a-5)+15-2a=3a-15+15-2a=a,
-4(2b+1)-2b+3=-8b-4-2b+3=-10b-1,
1034.2)
3(x+2)-x+2=3x+6-x+2=2x+8,
5(t-7)-6t+35=5t-35-6t+35=-t,
2a-5(a+3)-a=2a-5a-15-a=-4a-15,
1034.3)
5(x-1)+2(x+3)-7x=5x-5+2x+6-7x=1,
x-1-2(x+2)-1=x-1-2x-4-1=-3x-6,
(2a+1)2-a+5=4a+2-a+5=3a+7,
1034.4)
2(a+3)-(3-a)+1=2a+6-a+3+1=a+10,
3(a+b-1)-3a-3b+3=3a+3b-3-3a-3b+3=0,
5(1-2a)-3(a+1)=5-10a-3a-3=2-13a.
1035)
3(2-c)-4(c+3)=6-3c-4c-12=-6-7c=-6-7×(-3)=-6+21=15.
1113.
1)-5(3x-y)-6y=-15x+5y-6y=y,
2)7(3a-b)-20a+7b=21a-7b-20a+7b=a,
3)-(12n-5m)+12n=-12n+5m+12n=5m,
4)5x-6y-5(x-y)=5x-6y-5x+5y=-y.