3t-9=2t+12

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Solution for 3t-9=2t+12 equation: 



3t-9=2t+12

We move all terms to the left:

3t-9-(2t+12)=0

We get rid of parentheses

3t-2t-12-9=0

We add all the numbers together, and all the variables

t-21=0

We move all terms containing t to the left, all other terms to the right

t=21

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