SOLUTION: 7x-4y=13 x=3 solve this system of equations by the substitution method

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Question 538938: 7x-4y=13
x=3 solve this system of equations by the substitution method
Answer by boilpoil(127) About Me  (Show Source):
You can put this solution on YOUR website!
7(3)-4y=13
21-4y=13
-4y=-8
y=2