Answer :
[tex]\frac{2}{3}(6y+9)=\frac{3}{5}(15x-20)\ \ \ | multiply\ by\ 15\\\\
10(6y+9)=9(15x-20)\\\\
60y+90=135x-180\ \ \ | subtract\ 90\\\\
60y=135x-270\ \ \ | divide\ by\ 60\\\\
Slope\ intercept\ form:\ y=2.25x-4.5[/tex]