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OpenStudy (anonymous):
Solve the following system of equations x+7y=8 (1) x=2-7y (2)
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OpenStudy (turingtest):
sub the expression for x from (2) into (1): (2-7y)+7y=8 2=8 which is never true, therefor this system has NO SOLUTIONS
OpenStudy (anonymous):
oh thanks :D
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