.75(n-12)=120

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Solution for .75(n-12)=120 equation: 



.75(n-12)=120

We move all terms to the left:

.75(n-12)-(120)=0

We multiply parentheses

0.75n-9-120=0

We add all the numbers together, and all the variables

0.75n-129=0

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

0.75n=129

n=129/0.75

n=172

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