3(5x+7)=4x-(3+x)

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Solution for 3(5x+7)=4x-(3+x) equation: 



3(5x+7)=4x-(3+x)

We move all terms to the left:

3(5x+7)-(4x-(3+x))=0

We add all the numbers together, and all the variables

3(5x+7)-(4x-(x+3))=0

We multiply parentheses

15x-(4x-(x+3))+21=0



We calculate terms in parentheses: -(4x-(x+3)), so:

4x-(x+3)

We get rid of parentheses

4x-x-3

We add all the numbers together, and all the variables

3x-3

Back to the equation:

-(3x-3)



We get rid of parentheses

15x-3x+3+21=0

We add all the numbers together, and all the variables

12x+24=0

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

12x=-24

x=-24/12

x=-2

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