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OpenStudy (anonymous):
Solve the following system of equations by using the elimination method. -4x – 2y = -12 4x + 8y = -24 A. (5, 3) B. (-6, -6) C. (3, 1) D. (6, -6)
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pooja195 (pooja195):
so opposites will cancel out so 4x's cancels
pooja195 (pooja195):
whats -2 + 8?
pooja195 (pooja195):
do you know?
OpenStudy (anonymous):
that would be positive 6
pooja195 (pooja195):
12+-24 = ? now you have 6y
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OpenStudy (anonymous):
-12
pooja195 (pooja195):
whats -12/6
OpenStudy (anonymous):
-2
pooja195 (pooja195):
\[-4x-2(-2)=-12\] good now solve this :) we plugged in -2 to the 1st equation to get the x value
OpenStudy (anonymous):
-4x -4 = -12 right?
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