-9=-1/2a

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Solution for -9=-1/2a equation: 



-9=-1/2a

We move all terms to the left:

-9-(-1/2a)=0



Domain of the equation: 2a)!=0

a!=0/1

a!=0

a∈R



We get rid of parentheses

1/2a-9=0

We multiply all the terms by the denominator


-9*2a+1=0

Wy multiply elements

-18a+1=0

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

-18a=-1

a=-1/-18

a=1/18

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