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24-3n-7=20
We simplify the equation to the form, which is simple to understand
24-3n-7=20
We move all terms containing n to the left and all other terms to the right.
-3n=+20-24+7
We simplify left and right side of the equation.
-3n=+3
We divide both sides of the equation by -3 to get n.
n=-1
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