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Mathematics 7 Online
OpenStudy (anonymous):

-x+3y=-6 y=-3, x=?

OpenStudy (nory):

Plug the value of y into the equation. -x + 3(-3) = -6 Now you can solve the equation.

OpenStudy (anonymous):

is it -9?

OpenStudy (anonymous):

or -6?

OpenStudy (nory):

-x + -9 = -6 So what is x?

OpenStudy (anonymous):

15

OpenStudy (nory):

No... -x + -9 = -6 add 15 on both sides -x = 3 x = -3

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