72.2=y-21.2

Solution for 72.2=y-21.2 equation:

Simplifying
72.2 = y + -21.2

Reorder the terms:
72.2 = -21.2 + y

Solving
72.2 = -21.2 + 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.
72.2 + -1y = -21.2 + y + -1y

Combine like terms: y + -1y = 0
72.2 + -1y = -21.2 + 0
72.2 + -1y = -21.2

Add '-72.2' to each side of the equation.
72.2 + -72.2 + -1y = -21.2 + -72.2

Combine like terms: 72.2 + -72.2 = 0.0
0.0 + -1y = -21.2 + -72.2
-1y = -21.2 + -72.2

Combine like terms: -21.2 + -72.2 = -93.4
-1y = -93.4

Divide each side by '-1'.
y = 93.4

Simplifying
y = 93.4