9=2-4n-1

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Solution for 9=2-4n-1 equation:


Simplifying
9 = 2 + -4n + -1

Reorder the terms:
9 = 2 + -1 + -4n

Combine like terms: 2 + -1 = 1
9 = 1 + -4n

Solving
9 = 1 + -4n

Solving for variable 'n'.

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

Add '4n' to each side of the equation.
9 + 4n = 1 + -4n + 4n

Combine like terms: -4n + 4n = 0
9 + 4n = 1 + 0
9 + 4n = 1

Add '-9' to each side of the equation.
9 + -9 + 4n = 1 + -9

Combine like terms: 9 + -9 = 0
0 + 4n = 1 + -9
4n = 1 + -9

Combine like terms: 1 + -9 = -8
4n = -8

Divide each side by '4'.
n = -2

Simplifying
n = -2

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