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OpenStudy (anonymous):
Please help! :) -5x+2y=4 -10x+y=-13
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hero (hero):
Subtract the second equation from the first: -5x -(-10)x + 2y - y = 4 -(-13) -5x + 10x + y = 4 + 13 -5x + y = 17 y = 5x + 17 Now substitute that back into the second equation: -10x + (5x + 17) = -13 And solve for x.
OpenStudy (anonymous):
alright thanks!
hero (hero):
and solve for y after you find x.
OpenStudy (anonymous):
yea i got it thanks
hero (hero):
Did you solve for x and y? What did you get?
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OpenStudy (anonymous):
x=2 and y=7
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