3n+15=127-n

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Solution for 3n+15=127-n equation:


Simplifying
3n + 15 = 127 + -1n

Reorder the terms:
15 + 3n = 127 + -1n

Solving
15 + 3n = 127 + -1n

Solving for variable 'n'.

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

Add 'n' to each side of the equation.
15 + 3n + n = 127 + -1n + n

Combine like terms: 3n + n = 4n
15 + 4n = 127 + -1n + n

Combine like terms: -1n + n = 0
15 + 4n = 127 + 0
15 + 4n = 127

Add '-15' to each side of the equation.
15 + -15 + 4n = 127 + -15

Combine like terms: 15 + -15 = 0
0 + 4n = 127 + -15
4n = 127 + -15

Combine like terms: 127 + -15 = 112
4n = 112

Divide each side by '4'.
n = 28

Simplifying
n = 28

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