Question 54998
(1/10)(y-9)=9

Multiply both sides by 10 to get rid of the denominator, as follows:
10[(1/10)(y-9)=10*9
The 10 times the 1/10 is "1", so you get:
y-9=90
Add 9 to both sides to get:
y=99
Cheers,
Stan H.