5.62 How to plot a surface in 3D?

restart; 
eq:=3*x+4*y+2*z=10; 
plot3d(solve(eq,z),x=-5..5,y=-5..5,axes=normal);
 

One can also use impliticplot3d

restart; 
with(plots): 
implicitplot3d(3*x+4*y+2*z=10, x=-5..5,y=-5..5, z=-20..20,axes=normal);