21x=14(x+6)

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Solution for 21x=14(x+6) equation: 



21x=14(x+6)

We move all terms to the left:

21x-(14(x+6))=0



We calculate terms in parentheses: -(14(x+6)), so:

14(x+6)

We multiply parentheses

14x+84

Back to the equation:

-(14x+84)



We get rid of parentheses

21x-14x-84=0

We add all the numbers together, and all the variables

7x-84=0

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

7x=84

x=84/7

x=12

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