Ok how can I figure out X

Question

-4x + 8 y equals -16 equals 4x - 6 y equals 18

Answer 1

The wording of this problem is not clear.  It looks like you are trying to solve the system of equations:

 

-4x + 8y = -16

4x - 6y = 18

 

Add the 2 equations and get

 

2y = 2

y = 1

 

Plug y=1 into the top equation and get

 

-4x + 8(1) = -16

x = 6

 

Test the answer.