3=7x-2(6+x)

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Solution for 3=7x-2(6+x) equation: 



3=7x-2(6+x)

We move all terms to the left:

3-(7x-2(6+x))=0

We add all the numbers together, and all the variables

-(7x-2(x+6))+3=0



We calculate terms in parentheses: -(7x-2(x+6)), so:

7x-2(x+6)

We multiply parentheses

7x-2x-12

We add all the numbers together, and all the variables

5x-12

Back to the equation:

-(5x-12)



We get rid of parentheses

-5x+12+3=0

We add all the numbers together, and all the variables

-5x+15=0

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

-5x=-15

x=-15/-5

x=+3

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