0.15(x+20)-0.04(x-60)=1.2

Solution for 0.15(x+20)-0.04(x-60)=1.2 equation:

Simplifying
0.15(x + 20) + -0.04(x + -60) = 1.2

Reorder the terms:
0.15(20 + x) + -0.04(x + -60) = 1.2
(20 * 0.15 + x * 0.15) + -0.04(x + -60) = 1.2
(3 + 0.15x) + -0.04(x + -60) = 1.2

Reorder the terms:
3 + 0.15x + -0.04(-60 + x) = 1.2
3 + 0.15x + (-60 * -0.04 + x * -0.04) = 1.2
3 + 0.15x + (2.4 + -0.04x) = 1.2

Reorder the terms:
3 + 2.4 + 0.15x + -0.04x = 1.2

Combine like terms: 3 + 2.4 = 5.4
5.4 + 0.15x + -0.04x = 1.2

Combine like terms: 0.15x + -0.04x = 0.11x
5.4 + 0.11x = 1.2

Solving
5.4 + 0.11x = 1.2

Solving for variable 'x'.

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

Add '-5.4' to each side of the equation.
5.4 + -5.4 + 0.11x = 1.2 + -5.4

Combine like terms: 5.4 + -5.4 = 0.0
0.0 + 0.11x = 1.2 + -5.4
0.11x = 1.2 + -5.4

Combine like terms: 1.2 + -5.4 = -4.2
0.11x = -4.2

Divide each side by '0.11'.
x = -38.18181818

Simplifying
x = -38.18181818