2.2-0.3a+6=10

Solution for 2.2-0.3a+6=10 equation:

Simplifying
2.2 + -0.3a + 6 = 10

Reorder the terms:
2.2 + 6 + -0.3a = 10

Combine like terms: 2.2 + 6 = 8.2
8.2 + -0.3a = 10

Solving
8.2 + -0.3a = 10

Solving for variable 'a'.

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

Add '-8.2' to each side of the equation.
8.2 + -8.2 + -0.3a = 10 + -8.2

Combine like terms: 8.2 + -8.2 = 0.0
0.0 + -0.3a = 10 + -8.2
-0.3a = 10 + -8.2

Combine like terms: 10 + -8.2 = 1.8
-0.3a = 1.8

Divide each side by '-0.3'.
a = -6

Simplifying
a = -6