How do you simplify # (-6x + 2y - 3) + (2x - 4y - 7)#?
- Open up the parentheses
- Sort x's, y's and constants
- Add the x's, y's and constants together
Since both of the sets of parentheses are positive, you can remove them. Keep in mind that when you have negative parentheses, for example -(a-b), you have to change the signs inside the parentheses, so you get -a -b.
This won't be a problem here, since we only have positive parentheses.
Add x's together, y's together and constants together...
And that's your answer!
You can eventually factorize
but you don't have to.