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