SOLUTION: Linear System Solve each linear system using the method of substitution. c) 5x-y=4 3x+y=4 Thank you sooo much

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Linear System Solve each linear system using the method of substitution. c) 5x-y=4 3x+y=4 Thank you sooo much       Log On


   

Question 178030: Linear System
Solve each linear system using the method of substitution.
c) 5x-y=4
3x+y=4
Thank you sooo much
Answer by HyperBrain(694) About Me  (Show Source):
You can put this solution on YOUR website!

[1]5x-y=4
[2]3x+y=4

From [1],
5x-y=4
y=5x-4
Substituting to [2],
3x+5x-4=4
8x=8
x=1
y=5(1)-4=5-4=1
Therefore, x=1 and y=1.
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HyperBrain!

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