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2n+2n+13=n+7-3n
We simplify the equation to the form, which is simple to understand
2n+2n+13=n+7-3n
We move all terms containing n to the left and all other terms to the right.
+2n+2n-1n+3n=+7-13
We simplify left and right side of the equation.
+6n=-6
We divide both sides of the equation by 6 to get n.
n=-1
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