8.6=1.8+(n-1)-.4

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Solution for 8.6=1.8+(n-1)-.4 equation:


Simplifying
8.6 = 1.8 + (n + -1) + -0.4

Reorder the terms:
8.6 = 1.8 + (-1 + n) + -0.4

Remove parenthesis around (-1 + n)
8.6 = 1.8 + -1 + n + -0.4

Reorder the terms:
8.6 = 1.8 + -1 + -0.4 + n

Combine like terms: 1.8 + -1 = 0.8
8.6 = 0.8 + -0.4 + n

Combine like terms: 0.8 + -0.4 = 0.4
8.6 = 0.4 + n

Solving
8.6 = 0.4 + n

Solving for variable 'n'.

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

Add '-1n' to each side of the equation.
8.6 + -1n = 0.4 + n + -1n

Combine like terms: n + -1n = 0
8.6 + -1n = 0.4 + 0
8.6 + -1n = 0.4

Add '-8.6' to each side of the equation.
8.6 + -8.6 + -1n = 0.4 + -8.6

Combine like terms: 8.6 + -8.6 = 0.0
0.0 + -1n = 0.4 + -8.6
-1n = 0.4 + -8.6

Combine like terms: 0.4 + -8.6 = -8.2
-1n = -8.2

Divide each side by '-1'.
n = 8.2

Simplifying
n = 8.2

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