X+2y=2
7x-3y=-20
Solve the system of equations.

(-2,2)

Step-by-step explanation:

x+2y=2 and 7x-3y=-20

x+2y=2

-2y    -2y

7(-2y+2)-3y=-20

-17y+14=-20

-14          -14

-17y=-34

^divide both sides by -17

y=2

x(-2)(2)+2

x=-2

step-by-step explanation:

we can use this expression to calculate the energy gain as a particle moves with a field or the energy loss as it moves against it. (note that it is also used to define the electron-volt, a unit of energy equal to that gained by an electron as it falls through a pd of 1 v, i.e. w = 1 ev = 1.6 10-19 c 1 v = 1.6 10-19j).in fact this expression is really nothing more than the statement that potential is the potential energy per unit charge. in this case, v= w/qis simply stating that the change in potential energy(or work done) per unit charge is equal to the change in potential (or potential difference), v.student questions: uniform electric fields2electron beamcathode+5 kvanode0 v

idk

step-by-step explanation: