0.1x-0.2x+8.6=12.4

Solution for 0.1x-0.2x+8.6=12.4 equation:

Simplifying
0.1x + -0.2x + 8.6 = 12.4

Reorder the terms:
8.6 + 0.1x + -0.2x = 12.4

Combine like terms: 0.1x + -0.2x = -0.1x
8.6 + -0.1x = 12.4

Solving
8.6 + -0.1x = 12.4

Solving for variable 'x'.

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

Add '-8.6' to each side of the equation.
8.6 + -8.6 + -0.1x = 12.4 + -8.6

Combine like terms: 8.6 + -8.6 = 0.0
0.0 + -0.1x = 12.4 + -8.6
-0.1x = 12.4 + -8.6

Combine like terms: 12.4 + -8.6 = 3.8
-0.1x = 3.8

Divide each side by '-0.1'.
x = -38

Simplifying
x = -38