7x+13=x-9+7x+4

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Solution for 7x+13=x-9+7x+4 equation: 



7x+13=x-9+7x+4

We move all terms to the left:

7x+13-(x-9+7x+4)=0

We add all the numbers together, and all the variables

7x-(8x-5)+13=0

We get rid of parentheses

7x-8x+5+13=0

We add all the numbers together, and all the variables

-1x+18=0

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

-x=-18

x=-18/-1

x=+18

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