How to have the plot dependent of the solved value a
. The following code conducts to an error
def _(c=slider(0,1,step_size=0.2,default=1)):
a = solve(-c*x+6==x, x)
g = plot(x,(0,10),color="blue",ymin=0,ymax=10)
h = plot(-c*x+6,(a,6),color="yellow",ymin=0,ymax=10)
show(g+h)