Solve the system of equations. −10y+9x=−9 10y+5x=−5 x= y=

Add the two equations together to get 14x=-14. You can get that x=-1. Plugging that in, you get y=0.

So, x=-1

y=0

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.