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100(a+999)122-80=0
We simplify the equation to the form, which is simple to understand
100(a+999)122-80=0
Reorder the terms in parentheses
+(+100a+99900)*122-80=0
Reorder the terms in parentheses
+(+12200a+12187800)-80=0
Remove unnecessary parentheses
+12200a+12187800-80=0
We move all terms containing a to the left and all other terms to the right.
+12200a=0-12187800+80
We simplify left and right side of the equation.
+12200a=-12187720
We divide both sides of the equation by 12200 to get a.
a=-998.993442623
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