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51+n/3=57
We simplify the equation to the form, which is simple to understand
51+n/3=57
We move all terms containing n to the left and all other terms to the right.
+ 0.33333333333333n=+57-51
We simplify left and right side of the equation.
+ 0.33333333333333n=+6
We divide both sides of the equation by 0.33333333333333 to get n.
n=18
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