5t-t=7t+21

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Solution for 5t-t=7t+21 equation: 



5t-t=7t+21

We move all terms to the left:

5t-t-(7t+21)=0

We add all the numbers together, and all the variables

4t-(7t+21)=0

We get rid of parentheses

4t-7t-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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