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11-09-2014
Mathematics

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If 4m-3/7=3, what is the value of 7m-5

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11-09-2014

[tex]Firstly\ find\ value\ of\ m\\\\ \frac{4m-3}{7}=3\ \ | Multiply\ by\ 7\\\\ 4m-3=21\ \ \ |Add\ 3\\\\ 4m=24\ \ \ |Divide\ by\ 4\\\\ m=6\\\\ Now\ substitude\ m=6\ into\ 7m-5\\ 7m-5=7*6-5=42-5=\textbf{38}\\\\ \textbf{Solution\ is\ 38.} [/tex]

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