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OpenStudy (anonymous):
is the ordered pair a solution? (1,-1) -3y=x+2 3y=8X+5
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OpenStudy (anonymous):
solve for y on each and then plug in x = 1 to see if you get -1 on each one.
OpenStudy (mathstudent55):
Plug in (1, -1) into each equation and see if it makes it true. If it makes both equations true, it's a solution.
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