SOLUTION: solve the system of equations using the substution method -5x-y=18 x+2=9 solution(?,?)

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Question 207995: solve the system of equations using the substution method
-5x-y=18
x+2=9
solution(?,?)
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
x=7
-5x-y=18
-5(7)-y=18
-35-y=18
y=-53
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(7,-53)
should the problem be x+2y=9??