4e-3=31

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Solution for 4e-3=31 equation: 


Simplifying
4e + -3 = 31

Reorder the terms:
-3 + 4e = 31

Solving
-3 + 4e = 31

Solving for variable 'e'.

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

Add '3' to each side of the equation.
-3 + 3 + 4e = 31 + 3

Combine like terms: -3 + 3 = 0
0 + 4e = 31 + 3
4e = 31 + 3

Combine like terms: 31 + 3 = 34
4e = 34

Divide each side by '4'.
e = 8.5

Simplifying
e = 8.5

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