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21-01-2019
Mathematics

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Find the solution of this system of equations 5x - 6y =-90 -10x - 6y =-90

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21-01-2019

5x - 6y = -90

-10 x - 6y = -90

Subtracting,

15x = 0

x = 0

y = -90/(-6) = 15

Answer: x=0, y=15

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