Solve the system of equation?
2x - 4y = 10
7x - y = 12

x = 1.153846153846154

y = -1.923076923076923

Step-by-step explanation:

Multiply 7x - y = 12 by -4 and then add it to 2x - 4y = 10

       2x - 4y = 10

+(-4( 7x - y = 12))

     -26x = -30

    x = 1.153846153846154

Then plug in x to get y.

  2(1.153846153846154) - 4y = 10

      2.307692307692308 - 4y = 10

     -2.307692307692308          -2.307692307692308

                 -4y = 7.692307692307692

                 y = -1.923076923076923

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step-by-step explanation:

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