.9n+.3(30-n)=.6n+12

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Solution for .9n+.3(30-n)=.6n+12 equation: 


Simplifying
0.9n + 0.3(30 + -1n) = 0.6n + 12
0.9n + (30 * 0.3 + -1n * 0.3) = 0.6n + 12
0.9n + (9 + -0.3n) = 0.6n + 12

Reorder the terms:
9 + 0.9n + -0.3n = 0.6n + 12

Combine like terms: 0.9n + -0.3n = 0.6n
9 + 0.6n = 0.6n + 12

Reorder the terms:
9 + 0.6n = 12 + 0.6n

Add '-0.6n' to each side of the equation.
9 + 0.6n + -0.6n = 12 + 0.6n + -0.6n

Combine like terms: 0.6n + -0.6n = 0.0
9 + 0.0 = 12 + 0.6n + -0.6n
9 = 12 + 0.6n + -0.6n

Combine like terms: 0.6n + -0.6n = 0.0
9 = 12 + 0.0
9 = 12

Solving
9 = 12

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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