40+55e=42+80e

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Solution for 40+55e=42+80e equation: 


Simplifying
40 + 55e = 42 + 80e

Solving
40 + 55e = 42 + 80e

Solving for variable 'e'.

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

Add '-80e' to each side of the equation.
40 + 55e + -80e = 42 + 80e + -80e

Combine like terms: 55e + -80e = -25e
40 + -25e = 42 + 80e + -80e

Combine like terms: 80e + -80e = 0
40 + -25e = 42 + 0
40 + -25e = 42

Add '-40' to each side of the equation.
40 + -40 + -25e = 42 + -40

Combine like terms: 40 + -40 = 0
0 + -25e = 42 + -40
-25e = 42 + -40

Combine like terms: 42 + -40 = 2
-25e = 2

Divide each side by '-25'.
e = -0.08

Simplifying
e = -0.08

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