-0.15-12=A

Solution for -0.15-12=A equation:

Simplifying
-0.15 + -12 = A

Combine like terms: -0.15 + -12 = -12.15
-12.15 = A

Solving
-12.15 = 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.
-12.15 + -1A = A + -1A

Combine like terms: A + -1A = 0
-12.15 + -1A = 0

Add '12.15' to each side of the equation.
-12.15 + 12.15 + -1A = 0 + 12.15

Combine like terms: -12.15 + 12.15 = 0.00
0.00 + -1A = 0 + 12.15
-1A = 0 + 12.15

Combine like terms: 0 + 12.15 = 12.15
-1A = 12.15

Divide each side by '-1'.
A = -12.15

Simplifying
A = -12.15