8+21=7(x+6)

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Solution for 8+21=7(x+6) equation: 



8+21=7(x+6)

We move all terms to the left:

8+21-(7(x+6))=0

We add all the numbers together, and all the variables

-(7(x+6))+29=0



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

7(x+6)

We multiply parentheses

7x+42

Back to the equation:

-(7x+42)



We get rid of parentheses

-7x-42+29=0

We add all the numbers together, and all the variables

-7x-13=0

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

-7x=13

x=13/-7

x=-1+6/7

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