-21+3(t-7)=6(t-7)

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Solution for -21+3(t-7)=6(t-7) equation: 



-21+3(t-7)=6(t-7)

We move all terms to the left:

-21+3(t-7)-(6(t-7))=0

We multiply parentheses

3t-(6(t-7))-21-21=0



We calculate terms in parentheses: -(6(t-7)), so:

6(t-7)

We multiply parentheses

6t-42

Back to the equation:

-(6t-42)



We add all the numbers together, and all the variables

3t-(6t-42)-42=0

We get rid of parentheses

3t-6t+42-42=0

We add all the numbers together, and all the variables

-3t=0

t=0/-3

t=0

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