r=y+r

Solution for r=y+r equation:

Simplifying
r = y + r

Reorder the terms:
r = r + y

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

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

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

Solving
0 = 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.
0 + -1y = y + -1y
Remove the zero:
-1y = y + -1y

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

Divide each side by '-1'.
y = 0

Simplifying
y = 0