Answer:
c =
![(d-ab)/(a)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/sxwoobrxwpgkqeybgijr2szvf37ifgt5sy.png)
Explanation:
your equation: a(c+b) = d
Distribute a to get: ac+ab=d
Subtract ab from both sides because you are trying to isolate c.
You should get: ac = d - ab
Now divide a so that you get c all alone. Should look like this:
c =
![(d-ab)/(a)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/sxwoobrxwpgkqeybgijr2szvf37ifgt5sy.png)
That's it!