e(x)=4x

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Solution for e(x)=4x equation: 


Simplifying
e(x) = 4x

Multiply e * x
ex = 4x

Solving
ex = 4x

Solving for variable 'e'.

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

Divide each side by 'x'.
e = 4

Simplifying
e = 4

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