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11-11-2020
Mathematics

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What is the result of adding these two equations?
4x-4y=-2
-9x-4y=-3

Respuesta :

11-11-2020

(4x-4y) + (-9x-4y) = -2 + -3
gather like terms :
4x-9x-4y-4y = -5
-5x-8y = -5

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