-1=-0.5(0)+b

Solution for -1=-0.5(0)+b equation:

Simplifying
-1 = -0.5(0) + b

Multiply -0.5 * 0
-1 = 0.0 + b

Anything times zero is zero.
-1 = 0.0 + b
Remove the zero:
-1 = b

Solving
-1 = b

Solving for variable 'b'.

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

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

Combine like terms: b + -1b = 0
-1 + -1b = 0

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

Combine like terms: -1 + 1 = 0
0 + -1b = 0 + 1
-1b = 0 + 1

Combine like terms: 0 + 1 = 1
-1b = 1

Divide each side by '-1'.
b = -1

Simplifying
b = -1