Question

Simplify (4x − 6) + (3x + 6).

Answer 1

Hey! 
So you want to combine like terms! 
You would distribute the + but the 3x + 6 stay the same.
4x - 6 + 3x + 6
4x + 3x makes 7x
-6 and 6 would cancel out and make 0
Your answer is 7x!
Hope this helps!

Answer 2

Add corresponding numbers and variables

4x + 3x = 7x
-6 + 6 = 0

7x is your answer


hope this helps