2n+7+n=45

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Solution for 2n+7+n=45 equation:


Simplifying
2n + 7 + n = 45

Reorder the terms:
7 + 2n + n = 45

Combine like terms: 2n + n = 3n
7 + 3n = 45

Solving
7 + 3n = 45

Solving for variable 'n'.

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

Add '-7' to each side of the equation.
7 + -7 + 3n = 45 + -7

Combine like terms: 7 + -7 = 0
0 + 3n = 45 + -7
3n = 45 + -7

Combine like terms: 45 + -7 = 38
3n = 38

Divide each side by '3'.
n = 12.66666667

Simplifying
n = 12.66666667

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