Question

What is `9(v-5) + 7(4v + 5)`?

Answer 1

`= 37v-10`

Explanation:

`9 (v-5) + 7(4v +5)`

`= 9 xx (v) + 9 xx (-5) + color(blue)(7 xx (4v) + 7 xx(5)`

`= 9 v -45 + color(blue)(28v+ 35`

`= 9 v + 28v+ 35-45`

`= 37v-10`