9a-8.0-8a=0.3-0.2

Solution for 9a-8.0-8a=0.3-0.2 equation:

Simplifying
9a + -8.0 + -8a = 0.3 + -0.2

Reorder the terms:
-8.0 + 9a + -8a = 0.3 + -0.2

Combine like terms: 9a + -8a = 1a
-8.0 + 1a = 0.3 + -0.2

Combine like terms: 0.3 + -0.2 = 0.1
-8.0 + 1a = 0.1

Solving
-8.0 + 1a = 0.1

Solving for variable 'a'.

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

Add '8.0' to each side of the equation.
-8.0 + 8.0 + 1a = 0.1 + 8.0

Combine like terms: -8.0 + 8.0 = 0.0
0.0 + 1a = 0.1 + 8.0
1a = 0.1 + 8.0

Combine like terms: 0.1 + 8.0 = 8.1
1a = 8.1

Divide each side by '1'.
a = 8.1

Simplifying
a = 8.1