Any multiple of (-2x+3y=18) would constitute an "other equation" forming a system with an infiinite number of solutions. The reason for that is that the two equations would be "dependent."
On the other hand, looking at the system
<span>-2x+ 3y= 18 </span><span>-2x+ 3y= 19
we see that there is no solution. Why? Because -2x + 3y cannot equal 18 and 19 at the same time. You'd have two non-intersecting, parallel lines.
Density = Mass/Volume Mass = 152.7 gVolume = 9.5 mL Since the mass gram correspond to the volume mL, then we can apply the formula: Density = 152.7/9.5 = 16.074 g/mL (Or kg/L)
