5n-21=45

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Solution for 5n-21=45 equation: 


Simplifying
5n + -21 = 45

Reorder the terms:
-21 + 5n = 45

Solving
-21 + 5n = 45

Solving for variable 'n'.

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

Add '21' to each side of the equation.
-21 + 21 + 5n = 45 + 21

Combine like terms: -21 + 21 = 0
0 + 5n = 45 + 21
5n = 45 + 21

Combine like terms: 45 + 21 = 66
5n = 66

Divide each side by '5'.
n = 13.2

Simplifying
n = 13.2

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