111=y-9

Solution for 111=y-9 equation:

Simplifying
111 = y + -9

Reorder the terms:
111 = -9 + y

Solving
111 = -9 + y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
111 + -1y = -9 + y + -1y

Combine like terms: y + -1y = 0
111 + -1y = -9 + 0
111 + -1y = -9

Add '-111' to each side of the equation.
111 + -111 + -1y = -9 + -111

Combine like terms: 111 + -111 = 0
0 + -1y = -9 + -111
-1y = -9 + -111

Combine like terms: -9 + -111 = -120
-1y = -120

Divide each side by '-1'.
y = 120

Simplifying
y = 120