4.3n-2.1(n+4)=15

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


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

Reorder the terms:
4.3n + -2.1(4 + n) = 15
4.3n + (4 * -2.1 + n * -2.1) = 15
4.3n + (-8.4 + -2.1n) = 15

Reorder the terms:
-8.4 + 4.3n + -2.1n = 15

Combine like terms: 4.3n + -2.1n = 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 = 23.4
2.2n = 23.4

Divide each side by '2.2'.
n = 10.63636364

Simplifying
n = 10.63636364

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