-3(2t+7)=-21

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Solution for -3(2t+7)=-21 equation: 



-3(2t+7)=-21

We move all terms to the left:

-3(2t+7)-(-21)=0

We add all the numbers together, and all the variables

-3(2t+7)+21=0

We multiply parentheses

-6t-21+21=0

We add all the numbers together, and all the variables

-6t=0

t=0/-6

t=0

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