2e-9=-2.8

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Solution for 2e-9=-2.8 equation: 


Simplifying
2e + -9 = -2.8

Reorder the terms:
-9 + 2e = -2.8

Solving
-9 + 2e = -2.8

Solving for variable 'e'.

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

Add '9' to each side of the equation.
-9 + 9 + 2e = -2.8 + 9

Combine like terms: -9 + 9 = 0
0 + 2e = -2.8 + 9
2e = -2.8 + 9

Combine like terms: -2.8 + 9 = 6.2
2e = 6.2

Divide each side by '2'.
e = 3.1

Simplifying
e = 3.1

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