1/2a+9=13

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Solution for 1/2a+9=13 equation: 



1/2a+9=13

We move all terms to the left:

1/2a+9-(13)=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-4=0

We multiply all the terms by the denominator


-4*2a+1=0

Wy multiply elements

-8a+1=0

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

-8a=-1

a=-1/-8

a=1/8

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