1/2a-9=11

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Solution for 1/2a-9=11 equation: 



1/2a-9=11

We move all terms to the left:

1/2a-9-(11)=0



Domain of the equation: 2a!=0

a!=0/2

a!=0

a∈R



We add all the numbers together, and all the variables

1/2a-20=0

We multiply all the terms by the denominator


-20*2a+1=0

Wy multiply elements

-40a+1=0

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

-40a=-1

a=-1/-40

a=1/40

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