0.5=a+-1

Solution for 0.5=a+-1 equation:

Simplifying
0.5 = a + -1

Reorder the terms:
0.5 = -1 + a

Solving
0.5 = -1 + 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.
0.5 + -1a = -1 + a + -1a

Combine like terms: a + -1a = 0
0.5 + -1a = -1 + 0
0.5 + -1a = -1

Add '-0.5' to each side of the equation.
0.5 + -0.5 + -1a = -1 + -0.5

Combine like terms: 0.5 + -0.5 = 0.0
0.0 + -1a = -1 + -0.5
-1a = -1 + -0.5

Combine like terms: -1 + -0.5 = -1.5
-1a = -1.5

Divide each side by '-1'.
a = 1.5

Simplifying
a = 1.5