8(a+9)=103.2

Solution for 8(a+9)=103.2 equation:

Simplifying
8(a + 9) = 103.2

Reorder the terms:
8(9 + a) = 103.2
(9 * 8 + a * 8) = 103.2
(72 + 8a) = 103.2

Solving
72 + 8a = 103.2

Solving for variable 'a'.

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

Add '-72' to each side of the equation.
72 + -72 + 8a = 103.2 + -72

Combine like terms: 72 + -72 = 0
0 + 8a = 103.2 + -72
8a = 103.2 + -72

Combine like terms: 103.2 + -72 = 31.2
8a = 31.2

Divide each side by '8'.
a = 3.9

Simplifying
a = 3.9