21.72=y*1.05

Solution for 21.72=y*1.05 equation:

Simplifying
21.72 = y * 1.05

Reorder the terms for easier multiplication:
21.72 = 1.05y

Solving
21.72 = 1.05y

Solving for variable 'y'.

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

Add '-1.05y' to each side of the equation.
21.72 + -1.05y = 1.05y + -1.05y

Combine like terms: 1.05y + -1.05y = 0.00
21.72 + -1.05y = 0.00

Add '-21.72' to each side of the equation.
21.72 + -21.72 + -1.05y = 0.00 + -21.72

Combine like terms: 21.72 + -21.72 = 0.00
0.00 + -1.05y = 0.00 + -21.72
-1.05y = 0.00 + -21.72

Combine like terms: 0.00 + -21.72 = -21.72
-1.05y = -21.72

Divide each side by '-1.05'.
y = 20.68571429

Simplifying
y = 20.68571429