6.3+a-3.3=2.3+15

Solution for 6.3+a-3.3=2.3+15 equation:

Simplifying
6.3 + a + -3.3 = 2.3 + 15

Reorder the terms:
6.3 + -3.3 + a = 2.3 + 15

Combine like terms: 6.3 + -3.3 = 3
3 + a = 2.3 + 15

Combine like terms: 2.3 + 15 = 17.3
3 + a = 17.3

Solving
3 + a = 17.3

Solving for variable 'a'.

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

Add '-3' to each side of the equation.
3 + -3 + a = 17.3 + -3

Combine like terms: 3 + -3 = 0
0 + a = 17.3 + -3
a = 17.3 + -3

Combine like terms: 17.3 + -3 = 14.3
a = 14.3

Simplifying
a = 14.3