-2.1(-4+n)+4.3n=15

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Solution for -2.1(-4+n)+4.3n=15 equation: 


Simplifying
-2.1(-4 + n) + 4.3n = 15
(-4 * -2.1 + n * -2.1) + 4.3n = 15
(8.4 + -2.1n) + 4.3n = 15

Combine like terms: -2.1n + 4.3n = 2.2n
8.4 + 2.2n = 15

Solving
8.4 + 2.2n = 15

Solving for variable 'n'.

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

Add '-8.4' to each side of the equation.
8.4 + -8.4 + 2.2n = 15 + -8.4

Combine like terms: 8.4 + -8.4 = 0.0
0.0 + 2.2n = 15 + -8.4
2.2n = 15 + -8.4

Combine like terms: 15 + -8.4 = 6.6
2.2n = 6.6

Divide each side by '2.2'.
n = 3

Simplifying
n = 3

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