7e-8=3.9

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Solution for 7e-8=3.9 equation: 


Simplifying
7e + -8 = 3.9

Reorder the terms:
-8 + 7e = 3.9

Solving
-8 + 7e = 3.9

Solving for variable 'e'.

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

Add '8' to each side of the equation.
-8 + 8 + 7e = 3.9 + 8

Combine like terms: -8 + 8 = 0
0 + 7e = 3.9 + 8
7e = 3.9 + 8

Combine like terms: 3.9 + 8 = 11.9
7e = 11.9

Divide each side by '7'.
e = 1.7

Simplifying
e = 1.7

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