(2.1n+3.1+1.5n)-7+5+3=

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Solution for (2.1n+3.1+1.5n)-7+5+3= equation: 


Simplifying
(2.1n + 3.1 + 1.5n) + -7 + 5 + 3 = 0

Reorder the terms:
(3.1 + 2.1n + 1.5n) + -7 + 5 + 3 = 0

Combine like terms: 2.1n + 1.5n = 3.6n
(3.1 + 3.6n) + -7 + 5 + 3 = 0

Remove parenthesis around (3.1 + 3.6n)
3.1 + 3.6n + -7 + 5 + 3 = 0

Reorder the terms:
3.1 + -7 + 5 + 3 + 3.6n = 0

Combine like terms: 3.1 + -7 = -3.9
-3.9 + 5 + 3 + 3.6n = 0

Combine like terms: -3.9 + 5 = 1.1
1.1 + 3 + 3.6n = 0

Combine like terms: 1.1 + 3 = 4.1
4.1 + 3.6n = 0

Solving
4.1 + 3.6n = 0

Solving for variable 'n'.

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

Add '-4.1' to each side of the equation.
4.1 + -4.1 + 3.6n = 0 + -4.1

Combine like terms: 4.1 + -4.1 = 0.0
0.0 + 3.6n = 0 + -4.1
3.6n = 0 + -4.1

Combine like terms: 0 + -4.1 = -4.1
3.6n = -4.1

Divide each side by '3.6'.
n = -1.138888889

Simplifying
n = -1.138888889

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