y-1=m(x-(-2))

Solution for y-1=m(x-(-2)) equation:

Simplifying
y + -1 = m(x + -1(-2))

Reorder the terms:
-1 + y = m(x + -1(-2))

Multiply -1 * -2
-1 + y = m(x + 2)

Reorder the terms:
-1 + y = m(2 + x)
-1 + y = (2 * m + x * m)
-1 + y = (2m + mx)

Solving
-1 + y = 2m + mx

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 = 2m + 1 + mx

Combine like terms: -1 + 1 = 0
0 + y = 2m + 1 + mx
y = 2m + 1 + mx

Reorder the terms:
y = 1 + 2m + mx

Simplifying
y = 1 + 2m + mx