3t+89=7t+21

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Solution for 3t+89=7t+21 equation: 



3t+89=7t+21

We move all terms to the left:

3t+89-(7t+21)=0

We get rid of parentheses

3t-7t-21+89=0

We add all the numbers together, and all the variables

-4t+68=0

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

-4t=-68

t=-68/-4

t=+17

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