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Mathematics 24 Online
OpenStudy (anonymous):

5. x – y = 1 x + y = -7 (4, -3) (-3, -4) (-4, 3) (3, -10)

OpenStudy (anonymous):

(-3,-4)

OpenStudy (anonymous):

thanks

OpenStudy (anonymous):

can you use any method?

OpenStudy (anonymous):

1 -1 1 1 1 -7 1 -1 1 0 2 -8 1 -1 1 0 1 -4 1 0 -3 x=-3 0 1 -4 y=-4

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