jakez0425 jakez0425

21-05-2017
Mathematics

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The lines whose equations are 2x + y = 3z and x + y = 6z intersect at which point?

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XxLostAndBrokenxX XxLostAndBrokenxX

21-05-2017

2x + y - (x + y) = 3z - 6z
--------------------------------------------------------
x = -3z
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(-3z, 9z)
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(x,y,z) = (-3z, 9z, z)
--------------------------
x = -3z, y = 9z
---------------------
There for the answer is (-3z, 9z)

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