18-e=20

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Solution for 18-e=20 equation: 


Simplifying
18 + -1e = 20

Solving
18 + -1e = 20

Solving for variable 'e'.

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

Add '-18' to each side of the equation.
18 + -18 + -1e = 20 + -18

Combine like terms: 18 + -18 = 0
0 + -1e = 20 + -18
-1e = 20 + -18

Combine like terms: 20 + -18 = 2
-1e = 2

Divide each side by '-1'.
e = -2

Simplifying
e = -2

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