Answer:
[tex]\large\boxed{x=\dfrac{5}{4}y+10}[/tex]
Step-by-step explanation:
[tex]4x-5y=40\qquad\text{add}\ 5y\ \text{to both sides}\\\\4x=5y+40\qquad\text{divide both sides by 4}\\\\x=\dfrac{5}{4}y+10[/tex]
