SOLUTION: How can I solve this : y=3x 5x-y =-4

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Question 809253: How can I solve this :
y=3x
5x-y =-4
Answer by TimothyLamb(4379) About Me  (Show Source):
You can put this solution on YOUR website!
y = 3x
5x - y = -4
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5x - (3x) = -4
2x = -4
Answer:
x = -2
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