Answer: 15y-9
Explanation: To expand 3(5y-3), we need to distribute. This means that we need to multiply the numbers on the outside of the parentheses with the numbers on the inside of the parentheses. In this case, we need to multiply 3 times 5y and 3 times -3. Let’s do so now.
3(5y-3)
15y-9
This is your answer! When expanded, you expression changes to 15y-9.
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