SOLUTION: given the equations 2x+y=1 and y=x+7 find the value of x-y

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Question 875293: given the equations 2x+y=1 and y=x+7 find the value of x-y
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
2x + y = 1
x - y = -7
2x = -6
x = -3 and y = 4 -3+-+y+=+-7