Respuesta :

paulancka
if you have 
y = 3/5 x + 4 you need to multiply by 5 - no fractions
5y = 3x + 20
5y - 3x = 20 
-3x +5y =20,  3x -5y =-20
(ax + by = c)

Answer: -3x + 5y = 20

Step-by-step explanation: