y-1=1(x-1)

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

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

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

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

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

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

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

Solving
y = 1x

Solving for variable 'y'.

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

Simplifying
y = 1x