7x+-7=13+12x

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Solution for 7x+-7=13+12x equation: 



7x+-7=13+12x

We move all terms to the left:

7x+-7-(13+12x)=0

We add all the numbers together, and all the variables

7x-(12x+13)-7+=0

We add all the numbers together, and all the variables

7x-(12x+13)=0

We get rid of parentheses

7x-12x-13=0

We add all the numbers together, and all the variables

-5x-13=0

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

-5x=13

x=13/-5

x=-2+3/5

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