7=1-x

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Solution for 7=1-x equation: 



7=1-x

We move all terms to the left:

7-(1-x)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

1x-1+7=0

We add all the numbers together, and all the variables

x+6=0

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

x=-6

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