4t=21-t

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Solution for 4t=21-t equation: 



4t=21-t

We move all terms to the left:

4t-(21-t)=0

We add all the numbers together, and all the variables

4t-(-1t+21)=0

We get rid of parentheses

4t+1t-21=0

We add all the numbers together, and all the variables

5t-21=0

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

5t=21

t=21/5

t=4+1/5

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