3=5x-(7+3x)

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



3=5x-(7+3x)

We move all terms to the left:

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

We add all the numbers together, and all the variables

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



We calculate terms in parentheses: -(5x-(3x+7)), so:

5x-(3x+7)

We get rid of parentheses

5x-3x-7

We add all the numbers together, and all the variables

2x-7

Back to the equation:

-(2x-7)



We get rid of parentheses

-2x+7+3=0

We add all the numbers together, and all the variables

-2x+10=0

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

-2x=-10

x=-10/-2

x=+5

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