0.1(a-0.2)=1.2+2.4

Solution for 0.1(a-0.2)=1.2+2.4 equation:

Simplifying
0.1(a + -0.2) = 1.2 + 2.4

Reorder the terms:
0.1(-0.2 + a) = 1.2 + 2.4
(-0.2 * 0.1 + a * 0.1) = 1.2 + 2.4
(-0.02 + 0.1a) = 1.2 + 2.4

Combine like terms: 1.2 + 2.4 = 3.6
-0.02 + 0.1a = 3.6

Solving
-0.02 + 0.1a = 3.6

Solving for variable 'a'.

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

Add '0.02' to each side of the equation.
-0.02 + 0.02 + 0.1a = 3.6 + 0.02

Combine like terms: -0.02 + 0.02 = 0.00
0.00 + 0.1a = 3.6 + 0.02
0.1a = 3.6 + 0.02

Combine like terms: 3.6 + 0.02 = 3.62
0.1a = 3.62

Divide each side by '0.1'.
a = 36.2

Simplifying
a = 36.2