0.4n-18=3n-16-0.9n

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Solution for 0.4n-18=3n-16-0.9n equation:


Simplifying
0.4n + -18 = 3n + -16 + -0.9n

Reorder the terms:
-18 + 0.4n = 3n + -16 + -0.9n

Reorder the terms:
-18 + 0.4n = -16 + 3n + -0.9n

Combine like terms: 3n + -0.9n = 2.1n
-18 + 0.4n = -16 + 2.1n

Solving
-18 + 0.4n = -16 + 2.1n

Solving for variable 'n'.

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

Add '-2.1n' to each side of the equation.
-18 + 0.4n + -2.1n = -16 + 2.1n + -2.1n

Combine like terms: 0.4n + -2.1n = -1.7n
-18 + -1.7n = -16 + 2.1n + -2.1n

Combine like terms: 2.1n + -2.1n = 0.0
-18 + -1.7n = -16 + 0.0
-18 + -1.7n = -16

Add '18' to each side of the equation.
-18 + 18 + -1.7n = -16 + 18

Combine like terms: -18 + 18 = 0
0 + -1.7n = -16 + 18
-1.7n = -16 + 18

Combine like terms: -16 + 18 = 2
-1.7n = 2

Divide each side by '-1.7'.
n = -1.176470588

Simplifying
n = -1.176470588

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