3n+15=2(n+2)+n-4

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Solution for 3n+15=2(n+2)+n-4 equation: 


Simplifying
3n + 15 = 2(n + 2) + n + -4

Reorder the terms:
15 + 3n = 2(n + 2) + n + -4

Reorder the terms:
15 + 3n = 2(2 + n) + n + -4
15 + 3n = (2 * 2 + n * 2) + n + -4
15 + 3n = (4 + 2n) + n + -4

Reorder the terms:
15 + 3n = 4 + -4 + 2n + n

Combine like terms: 4 + -4 = 0
15 + 3n = 0 + 2n + n
15 + 3n = 2n + n

Combine like terms: 2n + n = 3n
15 + 3n = 3n

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

Combine like terms: 3n + -3n = 0
15 + 0 = 3n + -3n
15 = 3n + -3n

Combine like terms: 3n + -3n = 0
15 = 0

Solving
15 = 0

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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