## Answer :

Isolate "y":

[tex]3x+4y=17\\ \\ 4y=17-3x\\ \\ \boxed{y=\frac{17-3x}{4}}[/tex]

[tex]3x+4y=17\\ \\ 4y=17-3x\\ \\ \boxed{y=\frac{17-3x}{4}}[/tex]

[tex]3x+4y=17\ \ \ /-3x\\\\4y=17-3x\ \ \ \ /:4\\\\y=\frac{17-3x}{4}\\\\y=4.25-0.75x[/tex]