Mathematics

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If 3t-7 = 5t then 6t =
How do I solve this? I've tried finding help online, but I'm getting more confused.

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[tex]3t-7=5t\ \ \ /+7\\\\3t-7+7=5t+7\\\\3t=5t+7\ \ \ /-5t\\\\3t-5t=5t-5t+7\\\\-2t=7\ \ \ /:(-2)\\\\t=-\frac{7}{2}\\\\\\6t=6\cdot(-\frac{7}{2})=3\cdot(-7)=-21[/tex]

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