1+3x=13+3x+7-7x

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Solution for 1+3x=13+3x+7-7x equation: 



1+3x=13+3x+7-7x

We move all terms to the left:

1+3x-(13+3x+7-7x)=0

We add all the numbers together, and all the variables

3x-(-4x+20)+1=0

We get rid of parentheses

3x+4x-20+1=0

We add all the numbers together, and all the variables

7x-19=0

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

7x=19

x=19/7

x=2+5/7

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