3n-21=9-27n

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Solution for 3n-21=9-27n equation:


Simplifying
3n + -21 = 9 + -27n

Reorder the terms:
-21 + 3n = 9 + -27n

Solving
-21 + 3n = 9 + -27n

Solving for variable 'n'.

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

Add '27n' to each side of the equation.
-21 + 3n + 27n = 9 + -27n + 27n

Combine like terms: 3n + 27n = 30n
-21 + 30n = 9 + -27n + 27n

Combine like terms: -27n + 27n = 0
-21 + 30n = 9 + 0
-21 + 30n = 9

Add '21' to each side of the equation.
-21 + 21 + 30n = 9 + 21

Combine like terms: -21 + 21 = 0
0 + 30n = 9 + 21
30n = 9 + 21

Combine like terms: 9 + 21 = 30
30n = 30

Divide each side by '30'.
n = 1

Simplifying
n = 1

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