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How do you solve -3x plus y equals 7 and x-y equals -3 by elimination?
Wiki User
∙ 12y ago
-3x+y = 7
x-y = -3
Add both equations together to eliminate y:
-2x = 4
Divide both sides by -2 to find the value of x:
x = -2
Substitute the value of x into the original equations to find the value of y:
Therefore: x = -2 and y = 1
Wiki User
∙ 12y ago
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