Question

10+3(2xz+3)+2xz

Answer 1

Chonda, You should explain the nature of the question and what exactly it wants. I am assuming for this question it just wants you to simplify.

For that you need to follow the rules of PEMDAS
Nothing to do in the Parenthesis so move on
No Exponents
Multiplication/Division from left to right
\[10+6xz+9+2xz\]
Addition/Subtraction from left to right
\[19+8xz\]
And you're done!

Answer 2

10 +6xz +9 +2xz = 0
19 + 8xz =0
8xz=-19
-19
x= ----
8z
- so if you have checked the x