1228=3y

Rewrite the equation as 3y=1228.

3y=1228

Factor 4 out of 12.

3y=4(3)28

Cancel the common factors.

Factor 4 out of 28.

3y=4⋅34⋅7

Cancel the common factor.

3y=4⋅34⋅7

Rewrite the expression.

3y=37

3y=37

3y=37

Multiply the numerator of the first fraction by the denominator of the second fraction. Set this equal to the product of the denominator of the first fraction and the numerator of the second fraction.

3⋅7=y⋅3

Rewrite the equation as y⋅3=3⋅7.

y⋅3=3⋅7

Multiply 3 by 7.

y⋅3=21

Divide each term by 3 and simplify.

Divide each term in y⋅3=21 by 3.

y⋅33=213

Cancel the common factor of 3.

Cancel the common factor.

y⋅33=213

Divide y by 1.

y=213

y=213

Divide 21 by 3.

y=7

y=7

y=7

Solve for y 12/28=3/y