-e+3=5e+21

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Solution for -e+3=5e+21 equation:


Simplifying
-1e + 3 = 5e + 21

Reorder the terms:
3 + -1e = 5e + 21

Reorder the terms:
3 + -1e = 21 + 5e

Solving
3 + -1e = 21 + 5e

Solving for variable 'e'.

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

Add '-5e' to each side of the equation.
3 + -1e + -5e = 21 + 5e + -5e

Combine like terms: -1e + -5e = -6e
3 + -6e = 21 + 5e + -5e

Combine like terms: 5e + -5e = 0
3 + -6e = 21 + 0
3 + -6e = 21

Add '-3' to each side of the equation.
3 + -3 + -6e = 21 + -3

Combine like terms: 3 + -3 = 0
0 + -6e = 21 + -3
-6e = 21 + -3

Combine like terms: 21 + -3 = 18
-6e = 18

Divide each side by '-6'.
e = -3

Simplifying
e = -3

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