19=a-3.3

Solution for 19=a-3.3 equation:

Simplifying
19 = a + -3.3

Reorder the terms:
19 = -3.3 + a

Solving
19 = -3.3 + 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.
19 + -1a = -3.3 + a + -1a

Combine like terms: a + -1a = 0
19 + -1a = -3.3 + 0
19 + -1a = -3.3

Add '-19' to each side of the equation.
19 + -19 + -1a = -3.3 + -19

Combine like terms: 19 + -19 = 0
0 + -1a = -3.3 + -19
-1a = -3.3 + -19

Combine like terms: -3.3 + -19 = -22.3
-1a = -22.3

Divide each side by '-1'.
a = 22.3

Simplifying
a = 22.3