7x-3(2x+7)=x-(3x+7)-4

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Solution for 7x-3(2x+7)=x-(3x+7)-4 equation: 



7x-3(2x+7)=x-(3x+7)-4

We move all terms to the left:

7x-3(2x+7)-(x-(3x+7)-4)=0

We multiply parentheses

7x-6x-(x-(3x+7)-4)-21=0



We calculate terms in parentheses: -(x-(3x+7)-4), so:

x-(3x+7)-4

We get rid of parentheses

x-3x-7-4

We add all the numbers together, and all the variables

-2x-11

Back to the equation:

-(-2x-11)



We add all the numbers together, and all the variables

x-(-2x-11)-21=0

We get rid of parentheses

x+2x+11-21=0

We add all the numbers together, and all the variables

3x-10=0

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

3x=10

x=10/3

x=3+1/3

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