2a-21.6=a+2.4

Solution for 2a-21.6=a+2.4 equation:

Simplifying
2a + -21.6 = a + 2.4

Reorder the terms:
-21.6 + 2a = a + 2.4

Reorder the terms:
-21.6 + 2a = 2.4 + a

Solving
-21.6 + 2a = 2.4 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
-21.6 + 2a + -1a = 2.4 + a + -1a

Combine like terms: 2a + -1a = 1a
-21.6 + 1a = 2.4 + a + -1a

Combine like terms: a + -1a = 0
-21.6 + 1a = 2.4 + 0
-21.6 + 1a = 2.4

Add '21.6' to each side of the equation.
-21.6 + 21.6 + 1a = 2.4 + 21.6

Combine like terms: -21.6 + 21.6 = 0.0
0.0 + 1a = 2.4 + 21.6
1a = 2.4 + 21.6

Combine like terms: 2.4 + 21.6 = 24
1a = 24

Divide each side by '1'.
a = 24

Simplifying
a = 24