Question

Simplify the expression. 5g – 7g + 4 + 2g

Answer 1

combine the like terms. you get 4

Answer 2

It would end up being g+4. You combine like terms, so you would subtract 5g-7g to get -2g. Then you would add the 2g at the end of the equation. You can't do anything with 4, so it stays as is.