.5n+7=21

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Solution for .5n+7=21 equation: 



.5n+7=21

We move all terms to the left:

.5n+7-(21)=0

We add all the numbers together, and all the variables

.5n-14=0

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

.5n=14

n=14/.5

n=28

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