3n-2n-1=9

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Solution for 3n-2n-1=9 equation: 


Simplifying
3n + -2n + -1 = 9

Reorder the terms:
-1 + 3n + -2n = 9

Combine like terms: 3n + -2n = 1n
-1 + 1n = 9

Solving
-1 + 1n = 9

Solving for variable 'n'.

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

Add '1' to each side of the equation.
-1 + 1 + 1n = 9 + 1

Combine like terms: -1 + 1 = 0
0 + 1n = 9 + 1
1n = 9 + 1

Combine like terms: 9 + 1 = 10
1n = 10

Divide each side by '1'.
n = 10

Simplifying
n = 10

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