6t-9=21

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Solution for 6t-9=21 equation: 



6t-9=21

We move all terms to the left:

6t-9-(21)=0

We add all the numbers together, and all the variables

6t-30=0

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

6t=30

t=30/6

t=5

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