7x-3x+7=(x-)+20

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Solution for 7x-3x+7=(x-)+20 equation: 



7x-3x+7=(x-)+20

We move all terms to the left:

7x-3x+7-((x-)+20)=0

We add all the numbers together, and all the variables

7x-3x-((+x)+20)+7=0

We add all the numbers together, and all the variables

4x-((+x)+20)+7=0



We calculate terms in parentheses: -((+x)+20), so:

(+x)+20

We get rid of parentheses

x+20

Back to the equation:

-(x+20)



We get rid of parentheses

4x-x-20+7=0

We add all the numbers together, and all the variables

3x-13=0

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

3x=13

x=13/3

x=4+1/3

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