Answer:
x = -8
Step-by-step explanation:
We have,
[tex]x-3y=136\ ...(1)[/tex]
and
[tex]18x+3y=-288\ ....(2)[/tex]
Adding equation (1) and (2) we get :
[tex]19x=-152\\\\x=-8[/tex]
So, the value of x is -8.
