Y=3/5x+9 solve for x
\(y = \frac35x+9 \\~\\ y-9=\frac35x \\~\\ (y-9)\div\frac35=x \\~\\ (y-9)*\frac53=x \\~\\ \frac53y-15=x \\~\\ x=\frac53y-15\)