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4(7e-19)=64
We simplify the equation to the form, which is simple to understand
4(7e-19)=64
Reorder the terms in parentheses
+(+28e-76)=64
Remove unnecessary parentheses
+28e-76=+64
We move all terms containing e to the left and all other terms to the right.
+28e=+64+76
We simplify left and right side of the equation.
+28e=+140
We divide both sides of the equation by 28 to get e.
e=5
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