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2n+(5n)=0
We simplify the equation to the form, which is simple to understand
2n+(5n)=0
Remove unnecessary parentheses
+2n+5n=0
We move all terms containing n to the left and all other terms to the right.
+2n+5n=0
We simplify left and right side of the equation.
+7n=0
We divide both sides of the equation by 7 to get n.
n=0
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