Question

Simplify the following expression.
2x − 6y + 2z − 5x − 3y + 8z

−3x − 9y + 10z

−3x + 9y + 10z

−3x + 9y − 10z

3x − 9y + 10z

Answer 1

It equals a: -3x - 9y + 10z
Explanation:
You have: 2x - 6y + 2z - 5x - 3y + 8z
What you have to do is simply. How? By combining like terms.
So what terms do we have that we could combine?
We have the 2x and the -5x You have the -6y and the -3y and you have the 2z + 8z
Now combine them! 2x - 5x= -3x
-6y - 3y= -9y
2z + 8z= 10z
So you get: 2x - 6y + 2z - 5x - 3y + 8z= -3x - 9y + 10z