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Mathematics 8 Online
OpenStudy (anonymous):

For the following system, if you isolated x in the first equation to use the Substitution Method, what expression would you substitute into the second equation? x - y = 8 and -x - y = -7 8 - y -8 - y -8 + y 8 + y

OpenStudy (carniel):

Its either -8 +y or 8+y

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