3=2(7+x)

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



3=2(7+x)

We move all terms to the left:

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

We add all the numbers together, and all the variables

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



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

2(x+7)

We multiply parentheses

2x+14

Back to the equation:

-(2x+14)



We get rid of parentheses

-2x-14+3=0

We add all the numbers together, and all the variables

-2x-11=0

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

-2x=11

x=11/-2

x=-5+1/2

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