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99(10+e)=189
We simplify the equation to the form, which is simple to understand
99(10+e)=189
Reorder the terms in parentheses
+(+990+99e)=189
Remove unnecessary parentheses
+990+99e=+189
We move all terms containing e to the left and all other terms to the right.
+99e=+189-990
We simplify left and right side of the equation.
+99e=-801
We divide both sides of the equation by 99 to get e.
e=-8.0909090909091
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