SOLUTION: z �y = 30 z + y = 32 Column A: 2 -or- Column B: Y A. if the quantity in Column A is greater B. if the quantity in Column B is greater C. if the two quantities ar

Question 615604: z �y = 30
z + y = 32
Column A: 2 -or- Column B: Y
A. if the quantity in Column A is greater
B. if the quantity in Column B is greater
C. if the two quantities are equal
D. if it is impossible to determine which quantity is greater
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
The system of equations

can be solved in many different ways.
Since the value of y is needed, you do not need a full solution.
You need to get a way to answer the question as quickly as possible.
I would multiply the first equation times (-1),
getting and I would add the second equation to that, getting
--> -->
So, the quantity in column B is 1, and since the quantity in column A is 2,
the quantity in column A is greater.
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