20n-9=66

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Solution for 20n-9=66 equation: 


Simplifying
20n + -9 = 66

Reorder the terms:
-9 + 20n = 66

Solving
-9 + 20n = 66

Solving for variable 'n'.

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

Add '9' to each side of the equation.
-9 + 9 + 20n = 66 + 9

Combine like terms: -9 + 9 = 0
0 + 20n = 66 + 9
20n = 66 + 9

Combine like terms: 66 + 9 = 75
20n = 75

Divide each side by '20'.
n = 3.75

Simplifying
n = 3.75

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