399=2e-1

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Solution for 399=2e-1 equation:


Simplifying
399 = 2e + -1

Reorder the terms:
399 = -1 + 2e

Solving
399 = -1 + 2e

Solving for variable 'e'.

Move all terms containing e to the left, all other terms to the right.

Add '-2e' to each side of the equation.
399 + -2e = -1 + 2e + -2e

Combine like terms: 2e + -2e = 0
399 + -2e = -1 + 0
399 + -2e = -1

Add '-399' to each side of the equation.
399 + -399 + -2e = -1 + -399

Combine like terms: 399 + -399 = 0
0 + -2e = -1 + -399
-2e = -1 + -399

Combine like terms: -1 + -399 = -400
-2e = -400

Divide each side by '-2'.
e = 200

Simplifying
e = 200

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