2x + y = 0

2x - 3y = -8 what’s the x and y

x=-1 and y = 2

Step-by-step explanation:

if you explain the the question more correctly i might be able to answer this better

step-by-step explanation:

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.