SOLUTION: 7x-4y=13 x=3 Solve by the substitution method

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Question 327663: 7x-4y=13
x=3
Solve by the substitution method
Answer by user_dude2008(1862) About Me  (Show Source):
You can put this solution on YOUR website!
7x-4y=13
7(3)-4y=13
21-4y=13
-4y=13-21
-4y=-8
y=-8/(-4)
y=2