-5.2+9=-a

Solution for -5.2+9=-a equation:

Simplifying
-5.2 + 9 = -1a

Combine like terms: -5.2 + 9 = 3.8
3.8 = -1a

Solving
3.8 = -1a

Solving for variable 'a'.

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

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

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

Add '-3.8' to each side of the equation.
3.8 + -3.8 + a = 0 + -3.8

Combine like terms: 3.8 + -3.8 = 0.0
0.0 + a = 0 + -3.8
a = 0 + -3.8

Combine like terms: 0 + -3.8 = -3.8
a = -3.8

Simplifying
a = -3.8