Suppose that x, y,z are positive integers satisfying x \leq y \leq z, and such that the product of all three numbers is twice their sum. What is the sum of all possible values of z?

It could possibly be eq/8

actually your concept is wrong

step-by-step explanation:

150% of x =300

150x=300×100

x=(300×100)÷150

x=200

take the logarithm of both sides (the base of the log doesn't matter):

apply the exponent property - this says that :

distribute the log terms on both sides:

group like terms together:

divide through both sides by the coefficient on :

you can do some additional rewriting here using the properties of the logarithm to simplify things if you like: