147=3(7-7n)

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Solution for 147=3(7-7n) equation: 



147=3(7-7n)

We move all terms to the left:

147-(3(7-7n))=0

We add all the numbers together, and all the variables

-(3(-7n+7))+147=0



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

3(-7n+7)

We multiply parentheses

-21n+21

Back to the equation:

-(-21n+21)



We get rid of parentheses

21n-21+147=0

We add all the numbers together, and all the variables

21n+126=0

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

21n=-126

n=-126/21

n=-6

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