3n+n-5=31

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Solution for 3n+n-5=31 equation: 


Simplifying
3n + n + -5 = 31

Reorder the terms:
-5 + 3n + n = 31

Combine like terms: 3n + n = 4n
-5 + 4n = 31

Solving
-5 + 4n = 31

Solving for variable 'n'.

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

Add '5' to each side of the equation.
-5 + 5 + 4n = 31 + 5

Combine like terms: -5 + 5 = 0
0 + 4n = 31 + 5
4n = 31 + 5

Combine like terms: 31 + 5 = 36
4n = 36

Divide each side by '4'.
n = 9

Simplifying
n = 9

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