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Mathematics 15 Online
OpenStudy (anonymous):

WTF 7x + -5y = -28 (1 , _ )

OpenStudy (anonymous):

plug in x = 1 in the eq and solve for the y value

OpenStudy (jhannybean):

\[\large 7\color{green}{(1)}-5y = -28\]

OpenStudy (anonymous):

it equals 4.2... thats not right

OpenStudy (anonymous):

no, its \[y = \frac{ -28-7 }{ -5 }\]

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