Question

If 3a/b -6= 21, what is the value of a/b?

Answer 1

`\Huge \boxed{9}`

Explanation:

`\displaystyle (3a)/(b) -6= 21`

Add 6 to both sides.

`\displaystyle (3a)/(b) =27`

Dividing both sides by 3.

`\displaystyle (a)/(b) = 9`