-n-1=3n+21

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Solution for -n-1=3n+21 equation:


Simplifying
-1n + -1 = 3n + 21

Reorder the terms:
-1 + -1n = 3n + 21

Reorder the terms:
-1 + -1n = 21 + 3n

Solving
-1 + -1n = 21 + 3n

Solving for variable 'n'.

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

Add '-3n' to each side of the equation.
-1 + -1n + -3n = 21 + 3n + -3n

Combine like terms: -1n + -3n = -4n
-1 + -4n = 21 + 3n + -3n

Combine like terms: 3n + -3n = 0
-1 + -4n = 21 + 0
-1 + -4n = 21

Add '1' to each side of the equation.
-1 + 1 + -4n = 21 + 1

Combine like terms: -1 + 1 = 0
0 + -4n = 21 + 1
-4n = 21 + 1

Combine like terms: 21 + 1 = 22
-4n = 22

Divide each side by '-4'.
n = -5.5

Simplifying
n = -5.5

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