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

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



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

We move all terms to the left:

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

We multiply parentheses

7x+3x-((x+4)+3x)+21=0



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

(x+4)+3x

We add all the numbers together, and all the variables

3x+(x+4)

We get rid of parentheses

3x+x+4

We add all the numbers together, and all the variables

4x+4

Back to the equation:

-(4x+4)



We add all the numbers together, and all the variables

10x-(4x+4)+21=0

We get rid of parentheses

10x-4x-4+21=0

We add all the numbers together, and all the variables

6x+17=0

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

6x=-17

x=-17/6

x=-2+5/6

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