Question

a(x+b)=c;2(x+1)=9

Answer 1

ax+ab=c
ax=c-ab
x=(c-ab)/a

Answer 2

2x+2=9
2x=7
x=7/2

Answer 3

First 2x+2=9
2x=7
x=7/2

So
a(7/2+b)=c
or
(7/2)a+ ab = c

Answer 4

So whats x/a=b/c;x/8=4.5/12