7=(10-x)=126

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Solution for 7=(10-x)=126 equation: 



7=(10-x)=126

We move all terms to the left:

7-((10-x))=0

We add all the numbers together, and all the variables

-((-1x+10))+7=0



We calculate terms in parentheses: -((-1x+10)), so:

(-1x+10)

We get rid of parentheses

-1x+10

Back to the equation:

-(-1x+10)



We get rid of parentheses

1x-10+7=0

We add all the numbers together, and all the variables

x-3=0

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

x=3

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