21-7=x+27

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Solution for 21-7=x+27 equation: 



21-7=x+27

We move all terms to the left:

21-7-(x+27)=0

We add all the numbers together, and all the variables

-(x+27)+14=0

We get rid of parentheses

-x-27+14=0

We add all the numbers together, and all the variables

-1x-13=0

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

-x=13

x=13/-1

x=-13

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