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xxmaskiexxx

3(t+7)=9-5t 


First you would solve the distributed part . 3(t+7) which is (3t+21)
Then your problem will now be 3t+21=9-5t

Now you will subtract either 21 or 9 on both sides I chose 9.

now your problem will be 3t+12=5t

now you will subtract 3t because you cannot subtract 5t or it will be no problem on that side of the problem.

12=5t
      

now divide both sides by 5 and you will get your answer

Answer (2.4=t)

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