75-7.5n=4n+6

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Solution for 75-7.5n=4n+6 equation: 



75-7.5n=4n+6

We move all terms to the left:

75-7.5n-(4n+6)=0

We get rid of parentheses

-7.5n-4n-6+75=0

We add all the numbers together, and all the variables

-11.5n+69=0

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

-11.5n=-69

n=-69/-11.5

n=+6

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