0.2(a-16)=0.4a

Solution for 0.2(a-16)=0.4a equation:

Simplifying
0.2(a + -16) = 0.4a

Reorder the terms:
0.2(-16 + a) = 0.4a
(-16 * 0.2 + a * 0.2) = 0.4a
(-3.2 + 0.2a) = 0.4a

Solving
-3.2 + 0.2a = 0.4a

Solving for variable 'a'.

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

Add '-0.4a' to each side of the equation.
-3.2 + 0.2a + -0.4a = 0.4a + -0.4a

Combine like terms: 0.2a + -0.4a = -0.2a
-3.2 + -0.2a = 0.4a + -0.4a

Combine like terms: 0.4a + -0.4a = 0.0
-3.2 + -0.2a = 0.0

Add '3.2' to each side of the equation.
-3.2 + 3.2 + -0.2a = 0.0 + 3.2

Combine like terms: -3.2 + 3.2 = 0.0
0.0 + -0.2a = 0.0 + 3.2
-0.2a = 0.0 + 3.2

Combine like terms: 0.0 + 3.2 = 3.2
-0.2a = 3.2

Divide each side by '-0.2'.
a = -16

Simplifying
a = -16