0.4(a-24)=0.8a

Solution for 0.4(a-24)=0.8a equation:

Simplifying
0.4(a + -24) = 0.8a

Reorder the terms:
0.4(-24 + a) = 0.8a
(-24 * 0.4 + a * 0.4) = 0.8a
(-9.6 + 0.4a) = 0.8a

Solving
-9.6 + 0.4a = 0.8a

Solving for variable 'a'.

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

Add '-0.8a' to each side of the equation.
-9.6 + 0.4a + -0.8a = 0.8a + -0.8a

Combine like terms: 0.4a + -0.8a = -0.4a
-9.6 + -0.4a = 0.8a + -0.8a

Combine like terms: 0.8a + -0.8a = 0.0
-9.6 + -0.4a = 0.0

Add '9.6' to each side of the equation.
-9.6 + 9.6 + -0.4a = 0.0 + 9.6

Combine like terms: -9.6 + 9.6 = 0.0
0.0 + -0.4a = 0.0 + 9.6
-0.4a = 0.0 + 9.6

Combine like terms: 0.0 + 9.6 = 9.6
-0.4a = 9.6

Divide each side by '-0.4'.
a = -24

Simplifying
a = -24