Question

Evaluate -8z + 5 - 2x - 4 + 5x when x=2 before and after simplifying.

The value of the expression is —

Answer 1

The answer is -8z+7

You just have to put in number 2 to the variable x. It's really simple.

Answer 2

-8z+5-4-4+10=0

-8z=-5+4+4-10

-8z=-7

z=7/8

im not sure tho