# simple math

posted by
**Anonymous** on
.

(y2-9)/4y times 12/3y+9 does it equal

y-3

No, it is not y-3

[(y2-9)/4y] * 12/(3y+9)

=(1/4)(y+3)(y-3)(1/y)*(1/3)*[4/(y+3)]

=(y-3)/(3y)

thank you

but that wasn't an answer choice. (y-3)/y was an answer choice though

Sorry, I made an algebra error factoring the "12"

=(1/4)(y+3)(y-3)(1/y)*(1/3)*[3*4/(y+3)]

=(y-3)/y