9e + 4= -5e + 14 + 13e
solve for e

e =10

Step-by-step explanation:

9e + 4= -5e + 14 + 13e

The first step is to combine like terms.

9e + 4= -5e  + 13e+14

9e +4 = 8e + 14

Subtract 8e from each side.

9e-8e +4 = 14

e +4 = 14

Subtract 4 from each side to isolate e.

e+4-4 = 14-4

e = 10

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.

i do not know the answer

step-by-step explanation: