1/9=3/y
do cross multiplication and then divide to find y.
What is 1/9+1/y=4/y
2 answers
Not exactly kosher math talk, Jessica. Your teacher would want you to say this;
Multiply each side by 9y
9y/9=3*9y/y
y=27
Yahoo!!
Multiply each side by 9y
9y/9=3*9y/y
y=27
Yahoo!!