Plug In. If a = 3, b = 6, c = 3, d = 5, and e = 10, the value of the equation is
10(3+
6
3
)
5
= 10. Half of 10 is your target of 5. Try doubling each variable to find the one that yields 5. The only one that works is doubling d to 10 so that the equation is