Which two expressions are equivalent for any value of y
Asked by maham237 @ in Mathematics viewed by 302 People
a- 3 (3y + 3) and 6y + 6
b- 3 (3y + 3) and 9y + 6
c- 9 (y + 3) and 12 + 9y
d- 9 (y + 3) and 27 + 9y
Answered by maham237 @
The correct answer is letter d.
The reason is because of what each of these statements represent in math.
A number directly outside of a. parentheses means that we have that many groups of everything inside of the parentheses.
9(y + 3) means we have 9 groups of y and 9 groups of 3. This is the same as saying 9y + 27 or 27 + 9y.
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