0.5n+0.7n=12

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Solution for 0.5n+0.7n=12 equation: 



0.5n+0.7n=12

We move all terms to the left:

0.5n+0.7n-(12)=0

We add all the numbers together, and all the variables

1.2n-12=0

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

1.2n=12

n=12/1.2

n=10

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