(2.1n+3.1n+5.1n)-6+5+2=9n

Solution for (2.1n+3.1n+5.1n)-6+5+2=9n equation:

Simplifying
(2.1n + 3.1n + 5.1n) + -6 + 5 + 2 = 9n

Combine like terms: 2.1n + 3.1n = 5.2n
(5.2n + 5.1n) + -6 + 5 + 2 = 9n

Combine like terms: 5.2n + 5.1n = 10.3n
(10.3n) + -6 + 5 + 2 = 9n
(10.3n) + -6 + 5 + 2 = 9n

Reorder the terms:
-6 + 5 + 2 + (10.3n) = 9n

Combine like terms: -6 + 5 = -1
-1 + 2 + (10.3n) = 9n

Combine like terms: -1 + 2 = 1
1 + (10.3n) = 9n

Solving
1 + (10.3n) = 9n

Solving for variable 'n'.

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

Add '-9n' to each side of the equation.
1 + (10.3n) + -9n = 9n + -9n

Combine like terms: (10.3n) + -9n = 1.3n
1 + 1.3n = 9n + -9n

Combine like terms: 9n + -9n = 0
1 + 1.3n = 0

Add '-1' to each side of the equation.
1 + -1 + 1.3n = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 1.3n = 0 + -1
1.3n = 0 + -1

Combine like terms: 0 + -1 = -1
1.3n = -1

Divide each side by '1.3'.
n = -0.7692307692

Simplifying
n = -0.7692307692