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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

7(x+3)-(7(-1x+3))=0

We multiply parentheses

7x-(7(-1x+3))+21=0



We calculate terms in parentheses: -(7(-1x+3)), so:

7(-1x+3)

We multiply parentheses

-7x+21

Back to the equation:

-(-7x+21)



We get rid of parentheses

7x+7x-21+21=0

We add all the numbers together, and all the variables

14x=0

x=0/14

x=0

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