3n+7-n=23

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Solution for 3n+7-n=23 equation:


Simplifying
3n + 7 + -1n = 23

Reorder the terms:
7 + 3n + -1n = 23

Combine like terms: 3n + -1n = 2n
7 + 2n = 23

Solving
7 + 2n = 23

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 + 2n = 23 + -7

Combine like terms: 7 + -7 = 0
0 + 2n = 23 + -7
2n = 23 + -7

Combine like terms: 23 + -7 = 16
2n = 16

Divide each side by '2'.
n = 8

Simplifying
n = 8

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