16=3(3+7x)

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Solution for 16=3(3+7x) equation: 



16=3(3+7x)

We move all terms to the left:

16-(3(3+7x))=0

We add all the numbers together, and all the variables

-(3(7x+3))+16=0



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

3(7x+3)

We multiply parentheses

21x+9

Back to the equation:

-(21x+9)



We get rid of parentheses

-21x-9+16=0

We add all the numbers together, and all the variables

-21x+7=0

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

-21x=-7

x=-7/-21

x=1/3

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