which expression is equivalent to 9y - 3?\n3(y - 1)\n3(3y - 1)\n9(y - 3)\n9(3y - 3)

Explanation:

Step1: Factor out the greatest - common factor

Find the GCF of 9 and 3. The GCF of 9 and 3 is 3. $9y-3 = 3\times3y-3\times1$

Step2: Apply the distributive property in reverse

$a\times b - a\times c=a(b - c)$. Here $a = 3$, $b = 3y$ and $c = 1$. $3\times3y-3\times1=3(3y - 1)$

Answer:

B. $3(3y - 1)$