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-10n+7n=12
We simplify the equation to the form, which is simple to understand
-10n+7n=12
We move all terms containing n to the left and all other terms to the right.
-10n+7n=+12
We simplify left and right side of the equation.
-3n=+12
We divide both sides of the equation by -3 to get n.
n=-4
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