4+9e=72

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Solution for 4+9e=72 equation: 


Simplifying
4 + 9e = 72

Solving
4 + 9e = 72

Solving for variable 'e'.

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

Add '-4' to each side of the equation.
4 + -4 + 9e = 72 + -4

Combine like terms: 4 + -4 = 0
0 + 9e = 72 + -4
9e = 72 + -4

Combine like terms: 72 + -4 = 68
9e = 68

Divide each side by '9'.
e = 7.555555556

Simplifying
e = 7.555555556

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