Evaluate x+x+x+2x for x=2

10

Step-by-step explanation:

First, substitute all the x's in the equation for 2

So the equation looks like...

2+2+2+2(2)

Next, we can simplify this equation by multiplying 2 by 2 which equals 4

So the equation now looks like

2+2+2+4

Now we can solve

2+2+2+4=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.

hello i am doing good for you that it's summer in your country or state ; )

btw in my country we just have sun and rain as (because i live in the caribbean lol)

also, thx a lot for the points : )