30=a/2+12

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Solution for 30=a/2+12 equation: 



30=a/2+12

We move all terms to the left:

30-(a/2+12)=0

We get rid of parentheses

-a/2-12+30=0

We multiply all the terms by the denominator


-a-12*2+30*2=0

We add all the numbers together, and all the variables

-1a+36=0

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

-a=-36

a=-36/-1

a=+36

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