Question

Add: (7x-6y)+(3x+3y-3)

Answer 1

Since all the functions in here are addition and subtraction, you can remove the parentheses and just combine like terms.
$(7x-6y)+(3x+3y-3) \\ 7x-6y+3x+3y-3 \\ 7x+3x+3y-6y-3 \\ (7x+3x)+(3y-6y)-3 \\ 10x+(-3y)-3 \\ 10x-3y-3$

The answer is 10x-3y-3. 

Hope this helps!

Answer 2

Let's simplify step-by-step.7x−6y+3x+3y−3=7x+−6y+3x+3y+−3Combine Like Terms:=7x+−6y+3x+3y+−3=(7x+3x)+(−6y+3y)+(−3)=10x+−3y+−3Answer:=10x−3y−3