SOLUTION: Find the solution of the system of equations below using substition. y=3x+5 2x-y=-7

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Question 309342: Find the solution of the system of equations below using substition.
y=3x+5
2x-y=-7
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
y=3x+5
2x-y=-7
plug the value of y in the second equation
2x-(3x+5)=-7
2x-3x-5=-7
.
-x==-2
x=2
.
y=11