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90=86+93+n/3
We simplify the equation to the form, which is simple to understand
90=86+93+n/3
Simplifying:
90=86+93 + 0.333333333333n
We move all terms containing n to the left and all other terms to the right.
-0.333333333333n=+86+93-90
We simplify left and right side of the equation.
-0.333333333333n=+89
We divide both sides of the equation by -00.333333333333 to get n.
n=-267
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