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31-01-2017
Mathematics

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solve the system of equation using subtraction y= 2x-10 y=4x-8

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31-01-2017

y= 2x-10

y=4x-8

------------subtract

0 = -2x - 2

-2x=2

x = -1

y= 2x-10

y= 2(-1)-10

y = -2 - 10

y = -12

answer: x = -1 and y = -12 or (-1,-12)

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