\[-6x-3y=18\]
Solving for y. Want to solve for x instead?
1
Factor out the common term 33.
−3(2x+y)=18-3(2x+y)=18

2
Divide both sides by −3-3.
2x+y=−1832x+y=-\frac{18}{3}

3
Simplify  183\frac{18}{3}  to  66.
2x+y=−62x+y=-6

4
Subtract 2x2x from both sides.
y=−6−2xy=-6-2x

Done
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