Use subsititution to solve each system of equations. [x=2y] [y = x -2]

x=4

y=2

You can substitute the equations like y=1/2x and -x+y+2.

y do u put "subscirbe to ence" on a app for ppl who need with their work?

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.