Question 68702
Add 9/5 both sides
{{{3y - 9/5 + 9/5 = 3 + 9/5}}}
<br>{{{3y = 15/5 + 9/5}}}
<br>{{{3y = 24/5}}}
<br>Divide both sides by 3
{{{3y/3 = 24/5 * 1/3}}}
{{{highlight (y = 8/5)}}}

Checking 
{{{3y-9/5=3}}} , {{{y = 8/5}}}
<br>{{{3(8/5) - 9/5 = 3}}}
<br>{{{24/5 - 9/5 = 3}}}
<br>{{{15/5 = 3}}}
3 = 3 ---------> True