Answer:
[tex]y = \frac{5}{2}-\frac{x}{2}[/tex]
Step-by-step explanation:
To find the inverse, just interchange the variables and solve for y.
20 = 8y + 4x
20-4x = 8y : Then divide both sides by 8
[tex]y = \frac{20}{8} - \frac{4x}{8}[/tex]
[tex]y=\frac{5}{2} -\frac{x}{2}[/tex]
