y-(-1)=0(-2)+b

Solution for y-(-1)=0(-2)+b equation:

Simplifying
y + -1(-1) = 0(-2) + b

Multiply -1 * -1
y + 1 = 0(-2) + b

Reorder the terms:
1 + y = 0(-2) + b

Multiply 0 * -2
1 + y = 0 + b

Anything times zero is zero.
1 + y = 0 + b
Remove the zero:
1 + y = b

Solving
1 + y = b

Solving for variable 'y'.

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

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

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

Simplifying
y = -1 + b