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4x-5y=6
-3x+7=-10

Find the X in Elimination method
 Sep 24, 2013

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multiply first equation by 3, second by 4

12x-15y=18
-12x+28y=-40

add the equations

8y=-22
y=-2.75

plug -2.75 in one of the original equations and BOOM you got it
 Sep 25, 2013

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