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Mathematics 14 Online
OpenStudy (anonymous):

2x=96-14y 9x=40-14y

OpenStudy (uri):

2x+14y=96 9x+14y=40

OpenStudy (uri):

2x+14y=96 9x+14y=40 - - - =========== -7x =-56 x=-56/-7 x=8

OpenStudy (anonymous):

would it be a positive 7 how does it become a negative

OpenStudy (uri):

To find y substitute the value of x in any original equation x=8

OpenStudy (uri):

It becomes negative because -9 has a negative sign

OpenStudy (anonymous):

oh ok

OpenStudy (uri):

:)

OpenStudy (uri):

It's -8 not 8..sorry

OpenStudy (anonymous):

its ok

OpenStudy (uri):

2x+14y=96 9x+14y=40 - - - =========== -7x =56 x=56/-7 x=-8 ^^ changed.

OpenStudy (uri):

Now find y?

OpenStudy (anonymous):

its 8

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