Question

If ( 5^w )( 5^x ) = 5^y / 5^z , what is z in terms of w, x and y?

a) y/wx b) y-w-x c) w+x-y d) y-wx e) y/w+x

Answer 1

b

Explanation:

5^(w+x)=5^(y-z)

w+x=y-z

z=y-w-x