21=5n

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Solution for 21=5n equation:


Simplifying
21 = 5n

Solving
21 = 5n

Solving for variable 'n'.

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

Add '-5n' to each side of the equation.
21 + -5n = 5n + -5n

Combine like terms: 5n + -5n = 0
21 + -5n = 0

Add '-21' to each side of the equation.
21 + -21 + -5n = 0 + -21

Combine like terms: 21 + -21 = 0
0 + -5n = 0 + -21
-5n = 0 + -21

Combine like terms: 0 + -21 = -21
-5n = -21

Divide each side by '-5'.
n = 4.2

Simplifying
n = 4.2

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