What expression is equivalent to 7 (y-4)

Using the distributive property, you can distribute the 7 to y and -4. In other words, multiply the number outside of the parenthesis by each of the numbers in the parentheis. 
7*y+7*-4
=7y-28

:)

To find an equivalent expression to this, use the distributive property.
The distributive property means to multiply the term outside the parentheses by each term on the inside.

7 • y = 7y
7 • -4 = -28
It's a negative 4 since it has a minus sign in front of it.

7y - 28 is what we get from this.
This can not be simplified further so it is the final answer.

7y - 28

Hope this helps!