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Mathematics 20 Online
OpenStudy (anonymous):

Solve using matrices. 4x + 5y = 40 x – y = 1

OpenStudy (defiance):

@happyturtle3

OpenStudy (defiance):

We know x is 1 greater then y...

OpenStudy (defiance):

Cause x - y = 1.

OpenStudy (defiance):

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