4n+5n-12=25+3n-4

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Solution for 4n+5n-12=25+3n-4 equation:


Simplifying
4n + 5n + -12 = 25 + 3n + -4

Reorder the terms:
-12 + 4n + 5n = 25 + 3n + -4

Combine like terms: 4n + 5n = 9n
-12 + 9n = 25 + 3n + -4

Reorder the terms:
-12 + 9n = 25 + -4 + 3n

Combine like terms: 25 + -4 = 21
-12 + 9n = 21 + 3n

Solving
-12 + 9n = 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.
-12 + 9n + -3n = 21 + 3n + -3n

Combine like terms: 9n + -3n = 6n
-12 + 6n = 21 + 3n + -3n

Combine like terms: 3n + -3n = 0
-12 + 6n = 21 + 0
-12 + 6n = 21

Add '12' to each side of the equation.
-12 + 12 + 6n = 21 + 12

Combine like terms: -12 + 12 = 0
0 + 6n = 21 + 12
6n = 21 + 12

Combine like terms: 21 + 12 = 33
6n = 33

Divide each side by '6'.
n = 5.5

Simplifying
n = 5.5

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