.8n+.4(30-n)=.4n+12

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Solution for .8n+.4(30-n)=.4n+12 equation:


Simplifying
0.8n + 0.4(30 + -1n) = 0.4n + 12
0.8n + (30 * 0.4 + -1n * 0.4) = 0.4n + 12
0.8n + (12 + -0.4n) = 0.4n + 12

Reorder the terms:
12 + 0.8n + -0.4n = 0.4n + 12

Combine like terms: 0.8n + -0.4n = 0.4n
12 + 0.4n = 0.4n + 12

Reorder the terms:
12 + 0.4n = 12 + 0.4n

Add '-12' to each side of the equation.
12 + -12 + 0.4n = 12 + -12 + 0.4n

Combine like terms: 12 + -12 = 0
0 + 0.4n = 12 + -12 + 0.4n
0.4n = 12 + -12 + 0.4n

Combine like terms: 12 + -12 = 0
0.4n = 0 + 0.4n
0.4n = 0.4n

Add '-0.4n' to each side of the equation.
0.4n + -0.4n = 0.4n + -0.4n

Combine like terms: 0.4n + -0.4n = 0.0
0.0 = 0.4n + -0.4n

Combine like terms: 0.4n + -0.4n = 0.0
0.0 = 0.0

Solving
0.0 = 0.0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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