-1=1/a+9

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Solution for -1=1/a+9 equation: 



-1=1/a+9

We move all terms to the left:

-1-(1/a+9)=0



Domain of the equation: a+9)!=0

a∈R



We get rid of parentheses

-1/a-9-1=0

We multiply all the terms by the denominator


-9*a-1*a-1=0

We add all the numbers together, and all the variables

-10a-1=0

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

-10a=1

a=1/-10

a=-1/10

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