A-1/2a+4=12

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Solution for A-1/2a+4=12 equation: 



-1/2A+4=12

We move all terms to the left:

-1/2A+4-(12)=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-8=0

We multiply all the terms by the denominator


-8*2A-1=0

Wy multiply elements

-16A-1=0

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

-16A=1

A=1/-16

A=-1/16

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