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-7(-3n-7)=4n-19
We simplify the equation to the form, which is simple to understand
-7(-3n-7)=4n-19
Reorder the terms in parentheses
+(+21n+49)=4n-19
Remove unnecessary parentheses
+21n+49=+4n-19
We move all terms containing n to the left and all other terms to the right.
+21n-4n=-19-49
We simplify left and right side of the equation.
+17n=-68
We divide both sides of the equation by 17 to get n.
n=-4
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