7.5n+72=2.5(5n+12)+3n

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Solution for 7.5n+72=2.5(5n+12)+3n equation:


Simplifying
7.5n + 72 = 2.5(5n + 12) + 3n

Reorder the terms:
72 + 7.5n = 2.5(5n + 12) + 3n

Reorder the terms:
72 + 7.5n = 2.5(12 + 5n) + 3n
72 + 7.5n = (12 * 2.5 + 5n * 2.5) + 3n
72 + 7.5n = (30 + 12.5n) + 3n

Combine like terms: 12.5n + 3n = 15.5n
72 + 7.5n = 30 + 15.5n

Solving
72 + 7.5n = 30 + 15.5n

Solving for variable 'n'.

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

Add '-15.5n' to each side of the equation.
72 + 7.5n + -15.5n = 30 + 15.5n + -15.5n

Combine like terms: 7.5n + -15.5n = -8n
72 + -8n = 30 + 15.5n + -15.5n

Combine like terms: 15.5n + -15.5n = 0.0
72 + -8n = 30 + 0.0
72 + -8n = 30

Add '-72' to each side of the equation.
72 + -72 + -8n = 30 + -72

Combine like terms: 72 + -72 = 0
0 + -8n = 30 + -72
-8n = 30 + -72

Combine like terms: 30 + -72 = -42
-8n = -42

Divide each side by '-8'.
n = 5.25

Simplifying
n = 5.25

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