81-n=100

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Solution for 81-n=100 equation:


Simplifying
81 + -1n = 100

Solving
81 + -1n = 100

Solving for variable 'n'.

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

Add '-81' to each side of the equation.
81 + -81 + -1n = 100 + -81

Combine like terms: 81 + -81 = 0
0 + -1n = 100 + -81
-1n = 100 + -81

Combine like terms: 100 + -81 = 19
-1n = 19

Divide each side by '-1'.
n = -19

Simplifying
n = -19

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