Question

If `10(7a+5)=90` what is `(7a+15)`?

Answer 1

`7a+15 = 19`

Explanation:

Given:

`10(7a+5)= 90`

Divide both sides by `10` to get:

`7a+5 = 9`

Add `10` to both sides to get:

`7a+15 = 19`