Question

How do you simplify `3y -y+ 5 x+3-7x`?

Answer 1

`-2x +2y +3`

Explanation:

This is an expression with 5 terms.
You can only simplify it by adding like terms together.
YOu might find it easier to re-arrange the expression first.
We generally use alphabetical order.

`color(red)(5x -7x)color(blue)( +3y -y)color(forestgreen)( +3)`

`=color(red)(-2x)color(blue)( +2y)color(forestgreen)( +3)`

Note: you can only add like terms:,

You start with like terms and you end with like terms.

There are now 3 terms and this is the final answer.