Answer:
5y/8w = x
Step-by-step explanation:
The order Queen Zubaida picks a Satrap and a Vizier does not matter. Since order does not matter, combination is used.
Using a calculator, we solve for nCr = 12C2 = 66 ways..
Or using the combination formula C(n,r) = n!/[(n-r)!r!]
C(12, 2) = 12!/[(10!)(2!)] = 66 ways.
D
When you add 2+3 which equals 5 so it’ll be y=5x-7. And plug in y into the other equation. 5x-7-5x+8=0. -7-8=0, -7-8 =-1 therefore there is no solution because-7-8= -1 not 0.
The answer to your question is x=18