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If 3t − 7 = 5t , then 6t = how do you solve this

User Gesias
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2 Answers

3 votes

3t-7=5t\\ 5t-3t=-7\\ 2t=-7|\cdot3\\ \boxed{6t=-21}
User Rico Crescenzio
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4 votes

3t-7=5t \ \ \ |\hbox{subtract 3t} \\ -7=5t-3t \\ -7=2t \ \ \ |\hbox{multiply by 3} \\ \boxed{6t=-21}}
User Zounds
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