81-55=6+5a

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Solution for 81-55=6+5a equation: 



81-55=6+5a

We move all terms to the left:

81-55-(6+5a)=0

We add all the numbers together, and all the variables

-(5a+6)+81-55=0

We add all the numbers together, and all the variables

-(5a+6)+26=0

We get rid of parentheses

-5a-6+26=0

We add all the numbers together, and all the variables

-5a+20=0

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

-5a=-20

a=-20/-5

a=+4

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