8+-9t=21t-17

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Solution for 8+-9t=21t-17 equation: 



8+-9t=21t-17

We move all terms to the left:

8+-9t-(21t-17)=0

We add all the numbers together, and all the variables

-9t-(21t-17)=0

We get rid of parentheses

-9t-21t+17=0

We add all the numbers together, and all the variables

-30t+17=0

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

-30t=-17

t=-17/-30

t=17/30

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