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Mathematics 9 Online
OpenStudy (anonymous):

what does y = in the equation 6x+9y=54, when x=18? 6(18)+9y=54, 108+9y=54. I get lost after this step.

OpenStudy (anonymous):

subtract 108 from both sides... what u got now?

OpenStudy (anonymous):

9y=54, =6

OpenStudy (anonymous):

nope... be careful.... you should get : 9y = -54 y = ????

OpenStudy (anonymous):

-6

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