12x4
what is 48
c+2/45=8/5
what is c=70
12x5
what is 60
4b+16+2b=46
what is b=5
12x9
108
2c+c+12=78
what is c=22
12x10
120
3(x-6)+9+27
what is X=12
12x12
144
2(x+4)=18
what is X=5