What is the solution to (-7) = e/3+14

To work this out, we must use the balancing method - whatever we do to one side, we do exactly the same to the other

-7 = e/3 + 14

(-14) (-14)

-7 - 14 = - 21

-21 = e/3

(x3) (x3)

-21 x 3 = - 63

-63 = e

e = - 63