.5n-3=12

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Solution for .5n-3=12 equation: 



.5n-3=12

We move all terms to the left:

.5n-3-(12)=0

We add all the numbers together, and all the variables

.5n-15=0

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

.5n=15

n=15/.5

n=30

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