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30-11-2018
Mathematics

contestada

Solve by the substitution method
X-7y=-47, -6x-8y=-18

Respuesta :

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30-11-2018

Answer:

x is -5 ; y is 6

Step-by-step explanation:

x=-47+7y

-6x-8y=-18

-6(-47+7y)-8y=18

y=6

x=-47+7*6

x=-5

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