7=-x+2x+1

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



7=-x+2x+1

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(x+1)+7=0

We get rid of parentheses

-x-1+7=0

We add all the numbers together, and all the variables

-1x+6=0

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

-x=-6

x=-6/-1

x=+6

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