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14-11-2016
Mathematics

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How do i solve this by using substitution? y=4x-9y=x-3

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jaceyyg jaceyyg

14-11-2016

y = 4x -9
y = x-3
Replace the "y" in above equation by x-3
x - 3 = 4x - 9
-3x = -6
x = 2
Then replace x = 2 to the beneth
y = 2 - 3 = -1

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