Question 54998
{{{ (1/10)(y-9)=9 }}}
First thing, to get rid of the fraction ... multiply both sides by its reciprocal
{{{ (10/1)(1/10)(y-9)=9(10/1) }}}
The fractions cancel on the left
{{{ y-9=9(10/1) }}}
Multiply on the right
{{{ y-9=90 }}}
Add 9 to both sides
{{{ y-9+9 = 90 +9 }}}
Combine like terms
{{{ y = 99 }}}