SOLUTION: solve the linear system 5x-5y=-20 and 15x +5y=10

Question 821568: solve the linear system 5x-5y=-20 and 15x +5y=10

Found 2 solutions by Alan3354, TimothyLamb:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
5x-5y=-20
15x +5y=10
Divide both by 5
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x - y =-4
3x + y =2
----------- add them

Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
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5x - 5y = -20
15x + 5y = 10
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copy and paste the above standard form linear equations in to this solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
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answer:
x= -0.5
y= 3.5
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Solve and graph linear equations:
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Solve systems of linear equations up to 6-equations 6-variables:
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