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5n+4+4n=30
We simplify the equation to the form, which is simple to understand
5n+4+4n=30
We move all terms containing n to the left and all other terms to the right.
+5n+4n=+30-4
We simplify left and right side of the equation.
+9n=+26
We divide both sides of the equation by 9 to get n.
n=2.88888888889
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