7=3(5+x)

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Solution for 7=3(5+x) equation: 



7=3(5+x)

We move all terms to the left:

7-(3(5+x))=0

We add all the numbers together, and all the variables

-(3(x+5))+7=0



We calculate terms in parentheses: -(3(x+5)), so:

3(x+5)

We multiply parentheses

3x+15

Back to the equation:

-(3x+15)



We get rid of parentheses

-3x-15+7=0

We add all the numbers together, and all the variables

-3x-8=0

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

-3x=8

x=8/-3

x=-2+2/3

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