27=20+1(a)

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Solution for 27=20+1(a) equation: 



27=20+1(a)

We move all terms to the left:

27-(20+1(a))=0

We add all the numbers together, and all the variables

-(a+20)+27=0

We get rid of parentheses

-a-20+27=0

We add all the numbers together, and all the variables

-1a+7=0

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

-a=-7

a=-7/-1

a=+7

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