20-n=18

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Solution for 20-n=18 equation: 


Simplifying
20 + -1n = 18

Solving
20 + -1n = 18

Solving for variable 'n'.

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

Add '-20' to each side of the equation.
20 + -20 + -1n = 18 + -20

Combine like terms: 20 + -20 = 0
0 + -1n = 18 + -20
-1n = 18 + -20

Combine like terms: 18 + -20 = -2
-1n = -2

Divide each side by '-1'.
n = 2

Simplifying
n = 2

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