b- = 09 - b

To solve this equation, we can follow these steps:

1. Start by isolating the variable "b" on one side of the equation.
Subtract "b" from both sides:
b - b = 09 - b
Simplify:
0 = 09 - b

2. Rearrange the equation to have the variable on the left side:
-b = 09

3. Multiply both sides of the equation by -1 to eliminate the negative sign in front of the variable:
-1 * (-b) = -1 * 09
Simplify:
b = -09

So, the solution to the equation b - b = 09 - b is b = -09.