Answer:
Slope=-1/2
Step-by-step explanation:
The slope of a linear equation is the number thats multiply the x when the linear equation is in the form y=mx+b
So you have to express the equation in form y=mx+b
Let's put the x´s on the left and the y´s of the (=)
3x - 5x = 3y + y
-2x = 4y
y = (-2/4)x
Here m=-2/4 (-1/2) and b = 0
I hope I had been helpful!