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-6+9(1+2n)=31
We simplify the equation to the form, which is simple to understand
-6+9(1+2n)=31
Reorder the terms in parentheses
-6+(+9+18n)=31
Remove unnecessary parentheses
-6+9+18n=+31
We move all terms containing n to the left and all other terms to the right.
+18n=+31+6-9
We simplify left and right side of the equation.
+18n=+28
We divide both sides of the equation by 18 to get n.
n=1.5555555555556
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