2e=4e+21

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Solution for 2e=4e+21 equation: 


Simplifying
2e = 4e + 21

Reorder the terms:
2e = 21 + 4e

Solving
2e = 21 + 4e

Solving for variable 'e'.

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

Add '-4e' to each side of the equation.
2e + -4e = 21 + 4e + -4e

Combine like terms: 2e + -4e = -2e
-2e = 21 + 4e + -4e

Combine like terms: 4e + -4e = 0
-2e = 21 + 0
-2e = 21

Divide each side by '-2'.
e = -10.5

Simplifying
e = -10.5

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