3(7x+7)=7(x+7)

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



3(7x+7)=7(x+7)

We move all terms to the left:

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

We multiply parentheses

21x-(7(x+7))+21=0



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

7(x+7)

We multiply parentheses

7x+49

Back to the equation:

-(7x+49)



We get rid of parentheses

21x-7x-49+21=0

We add all the numbers together, and all the variables

14x-28=0

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

14x=28

x=28/14

x=2

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