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OpenStudy (anonymous):
is (-2,-7) a solution to the system of equations? 2x-y=3 x+y=-9
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OpenStudy (anonymous):
Just plug in the numbers in the equation and see if the equal the number on the other side of the equal sign
OpenStudy (anonymous):
Which if you do (-2,-7) is a solution to the equations.
OpenStudy (anonymous):
yes
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