-21=-13e+31

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Solution for -21=-13e+31 equation:


Simplifying
-21 = -13e + 31

Reorder the terms:
-21 = 31 + -13e

Solving
-21 = 31 + -13e

Solving for variable 'e'.

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

Add '13e' to each side of the equation.
-21 + 13e = 31 + -13e + 13e

Combine like terms: -13e + 13e = 0
-21 + 13e = 31 + 0
-21 + 13e = 31

Add '21' to each side of the equation.
-21 + 21 + 13e = 31 + 21

Combine like terms: -21 + 21 = 0
0 + 13e = 31 + 21
13e = 31 + 21

Combine like terms: 31 + 21 = 52
13e = 52

Divide each side by '13'.
e = 4

Simplifying
e = 4

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