3t=6t-21

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Solution for 3t=6t-21 equation: 



3t=6t-21

We move all terms to the left:

3t-(6t-21)=0

We get rid of parentheses

3t-6t+21=0

We add all the numbers together, and all the variables

-3t+21=0

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

-3t=-21

t=-21/-3

t=+7

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