Question

How do you simplify `3(15x-9y)+5(4y-x)`?

Answer 1

`40x-7y`

Explanation:

Begin by distributing the `3` to `15x-9` and distributing the `5` to `4y-x`

`3(15x-9y)+5(4y-x) -> 45x-27y+20y-5x`

Simplify by combing like terms:

`color(blue)(45x)color(red)(-27y)color(red)(+20y)color(blue)(-5x)`

This results in our final answer:

`40x-7y`