The equation is 72 = 3y.

Apply division property of equality: If a = b then .

       (Divide each side by negative 3) \ \

               (Cancel common terms)

y = 24                     (Divide: )

Check:

To check the solution, substitute y = 24 in original equation.

72=  (3)(24)

72 = 72               (Multiply: )

The statement is true.

The value of y = 24.