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Mathematics 21 Online
mikewwe13:

What is the x-coordinate of the solution for the system of equations? {y − x = 9 {10 + 2x = −2y Enter your answer in the box. x =

mikewwe13:

@Vocaloid

563blackghost:

Change the first equation into that of x. So make sure it is x= Can you do that?

mikewwe13:

(-7, 2)

563blackghost:

Correct!

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