1/2(2n-6)=5n-12-n
5(x+2)-7=-32
100(x-3)=450-50x
10e-2e-9=39
-81=7k+19+3k
13x+15=11x-25
4(x-5)+2=x+3
6x+3=x+8
7d-12+2d+3=18
10(h+1)-4=76
3
6
5
7
1
-20
-10
-7
