-12=3(7+t)

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Solution for -12=3(7+t) equation: 



-12=3(7+t)

We move all terms to the left:

-12-(3(7+t))=0

We add all the numbers together, and all the variables

-(3(t+7))-12=0



We calculate terms in parentheses: -(3(t+7)), so:

3(t+7)

We multiply parentheses

3t+21

Back to the equation:

-(3t+21)



We get rid of parentheses

-3t-21-12=0

We add all the numbers together, and all the variables

-3t-33=0

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

-3t=33

t=33/-3

t=-11

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