State the value of x in the following equation: 2(4x + 6) = 78

x = 8.25

Step-by-step explanation:

Expanded = 8x + 12 = 78

                          -12  -12

                   8x = 78

                     div by 8

x = 8.25

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

this may not be at all, but i use the same website you're using for school, and if i'm stuck doing one of these i try to look for it on the section.