21e-7=0

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Solution for 21e-7=0 equation: 


Simplifying
21e + -7 = 0

Reorder the terms:
-7 + 21e = 0

Solving
-7 + 21e = 0

Solving for variable 'e'.

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

Add '7' to each side of the equation.
-7 + 7 + 21e = 0 + 7

Combine like terms: -7 + 7 = 0
0 + 21e = 0 + 7
21e = 0 + 7

Combine like terms: 0 + 7 = 7
21e = 7

Divide each side by '21'.
e = 0.3333333333

Simplifying
e = 0.3333333333

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