e/7-3=-5
e/7 - 3 = -5 Begin to isolate the e by adding 3 to both sides.
+3 +3
e/7 = -2 Next, since e/7 is a division problem in this case, multiply both sides by 7.
7* e/7 = -2 * 7 The 7's on the left cancel leave -2 * 7 on the right hand side. Therefore,
e = -14