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Mathematics 9 Online
OpenStudy (anonymous):

Solve the following system. x − y = 10 x + y = 4

Directrix (directrix):

@mr.model Just add these to eliminate the y variable. Post answer for x here. Then, we'll solve for y. x − y = 10 x + y = 4 ----------

OpenStudy (anonymous):

(–3, 7) (–7, 3) (7, 3) (7, –3 choices.......

Directrix (directrix):

You solve for x, then I'll help you pick the solution.

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