0.2n+3-8.6+0.2n+3=8.6

Solution for 0.2n+3-8.6+0.2n+3=8.6 equation:

Simplifying
0.2n + 3 + -8.6 + 0.2n + 3 = 8.6

Reorder the terms:
3 + -8.6 + 3 + 0.2n + 0.2n = 8.6

Combine like terms: 3 + -8.6 = -5.6
-5.6 + 3 + 0.2n + 0.2n = 8.6

Combine like terms: -5.6 + 3 = -2.6
-2.6 + 0.2n + 0.2n = 8.6

Combine like terms: 0.2n + 0.2n = 0.4n
-2.6 + 0.4n = 8.6

Solving
-2.6 + 0.4n = 8.6

Solving for variable 'n'.

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

Add '2.6' to each side of the equation.
-2.6 + 2.6 + 0.4n = 8.6 + 2.6

Combine like terms: -2.6 + 2.6 = 0.0
0.0 + 0.4n = 8.6 + 2.6
0.4n = 8.6 + 2.6

Combine like terms: 8.6 + 2.6 = 11.2
0.4n = 11.2

Divide each side by '0.4'.
n = 28

Simplifying
n = 28