7x+-1=-2x

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Solution for 7x+-1=-2x equation: 



7x+-1=-2x

We move all terms to the left:

7x+-1-(-2x)=0

We add all the numbers together, and all the variables

7x-(-2x)=0

We get rid of parentheses

7x+2x=0

We add all the numbers together, and all the variables

9x=0

x=0/9

x=0

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