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Mathematics 15 Online
OpenStudy (anonymous):

determine whether (-4,8) is a solution to 7x-3y=9

OpenStudy (anonymous):

use the point in the equation. 7(-4)-3(8) = 9 Does it equal 9?

OpenStudy (anonymous):

no

OpenStudy (anonymous):

Then you have your answer

OpenStudy (mathmale):

You could conclude, in words, that (-4,8) is not a solution of 7x-3y=9 because the equation is untrue when -4 is substituted for x and 8 for y.

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