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Mathematics 15 Online
OpenStudy (anonymous):

8x+9y=-15 x=6 y=?

OpenStudy (anonymous):

x=-9y/8-15/8

OpenStudy (uri):

8x+9y=-15 8(6)+9y =-15 9y =-15 -48 9y =-63 y =-63/9 y =0.6774193. :D

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