rachelh3 rachelh3

15-03-2019
Mathematics

contestada

what is the solution of the system use substituion 3x-4y=9 -3x+2y=9

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Ammimochi Ammimochi

15-03-2019

Solve for x in 3x - 4y = 9

x = 9 + 4y/3

Substitute x = 9 + 4y/3 into -3x + 2y = 9

-9 - 2y = 9

Solve for y in -9 - 2y = 9

y = -9

Substitute y = -9 into x = 9 + 4y/3

x = -9

Therefore,

x = -9

y = -9

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