12=4-a/2

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Solution for 12=4-a/2 equation: 



12=4-a/2

We move all terms to the left:

12-(4-a/2)=0

We add all the numbers together, and all the variables

-(-a/2+4)+12=0

We get rid of parentheses

a/2-4+12=0

We multiply all the terms by the denominator


a-4*2+12*2=0

We add all the numbers together, and all the variables

a+16=0

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

a=-16

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