Answer:
[tex]\large\boxed{\dfrac{y}{3}=\dfrac{x}{4}}[/tex]
Step-by-step explanation:
[tex]\dfrac{x+4}{4}=\dfrac{y+3}{3}\\\\\dfrac{x}{4}+\dfrac{4}{4}=\dfrac{y}{3}+\dfrac{3}{3}\\\\\dfrac{x}{4}+1=\dfrac{y}{3}+1\qquad\text{subtract 1 from both sides}\\\\\dfrac{x}{4}=\dfrac{y}{3}[/tex]