Question 1201658
-6X = 18 - Y
9 = -3X - 8Y

Rearrange with variables on onside

-6x+y =18-------------1
-3x-8y=9--------------2

Lets equalise the coefficients of x

Multiply eqn  (2)  by -2
we get 6x+16y = -18 -------------3

solve (1) & (3)

-6x+y =18
 6x+16y = -18
Add the equations

17y =0
y=0

plug y=0 
-6x+y =18
-6x =18
x=-3


x=-3 ,y=0


Answer