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Mathematics 9 Online
OpenStudy (anonymous):

3y=6x-18 7y=6x+6

OpenStudy (anonymous):

3y = 6x-18, dividing by 3 3y/3 = 6x/3 -18/3, y = 2x - 6 Put this value of y on the second equation, 7(2x-6) = 6x + 6 14x - 42 = 6x + 6 8x = 48 x = 6 y = 2x- 6, y = 12 - 6 , y = 6 too.

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