2a-3.5-a+9.6=0

Solution for 2a-3.5-a+9.6=0 equation:

Simplifying
2a + -3.5 + -1a + 9.6 = 0

Reorder the terms:
-3.5 + 9.6 + 2a + -1a = 0

Combine like terms: -3.5 + 9.6 = 6.1
6.1 + 2a + -1a = 0

Combine like terms: 2a + -1a = 1a
6.1 + 1a = 0

Solving
6.1 + 1a = 0

Solving for variable 'a'.

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

Add '-6.1' to each side of the equation.
6.1 + -6.1 + 1a = 0 + -6.1

Combine like terms: 6.1 + -6.1 = 0.0
0.0 + 1a = 0 + -6.1
1a = 0 + -6.1

Combine like terms: 0 + -6.1 = -6.1
1a = -6.1

Divide each side by '1'.
a = -6.1

Simplifying
a = -6.1