jaylenecute29 jaylenecute29

23-03-2018
Mathematics

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Solve the system using elimination. x − 4y = 4 3x − 4y = −12

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jndawg04 jndawg04

23-03-2018

Common in both: -4y
Subtract the second from the first.
x-4y=4
3x-4y=-12
-2x=16
x=-8
Substitute in to find y.
-8-4y=4
-4y=12
y=-3

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