15=4.3-2.19(n-4)

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Solution for 15=4.3-2.19(n-4) equation: 


Simplifying
15 = 4.3 + -2.19(n + -4)

Reorder the terms:
15 = 4.3 + -2.19(-4 + n)
15 = 4.3 + (-4 * -2.19 + n * -2.19)
15 = 4.3 + (8.76 + -2.19n)

Combine like terms: 4.3 + 8.76 = 13.06
15 = 13.06 + -2.19n

Solving
15 = 13.06 + -2.19n

Solving for variable 'n'.

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

Add '2.19n' to each side of the equation.
15 + 2.19n = 13.06 + -2.19n + 2.19n

Combine like terms: -2.19n + 2.19n = 0.00
15 + 2.19n = 13.06 + 0.00
15 + 2.19n = 13.06

Add '-15' to each side of the equation.
15 + -15 + 2.19n = 13.06 + -15

Combine like terms: 15 + -15 = 0
0 + 2.19n = 13.06 + -15
2.19n = 13.06 + -15

Combine like terms: 13.06 + -15 = -1.94
2.19n = -1.94

Divide each side by '2.19'.
n = -0.8858447489

Simplifying
n = -0.8858447489

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