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-(2n+5)=-15
We simplify the equation to the form, which is simple to understand
-(2n+5)=-15
Remove unnecessary parentheses
-2n-5=-15
We move all terms containing n to the left and all other terms to the right.
-2n=-15+5
We simplify left and right side of the equation.
-2n=-10
We divide both sides of the equation by -2 to get n.
n=5
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