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28-02-2017
Mathematics

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Solve using elimination. -7x – 5y = -4 7x + 9y = -4

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stravis756 stravis756

28-02-2017

-7x-5y=-47x+9y=-4

combine like terms to cross out the 7x
solve for y, to get -2
plug it back in to one of the equations and x is 2

y=-2
x=2

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