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

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Solution for 7x-(x-3)=3x+3(x+1) equation: 



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

We move all terms to the left:

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

We get rid of parentheses

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



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

3x+3(x+1)

We multiply parentheses

3x+3x+3

We add all the numbers together, and all the variables

6x+3

Back to the equation:

-(6x+3)



We add all the numbers together, and all the variables

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

We get rid of parentheses

6x-6x-3+3=0

We add all the numbers together, and all the variables

=0

x=0/1

x=0

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