exam Maths Puzzle Numerical Ability

Solve each system by the substitution method:

#42
7y=9x
-3x=4y

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exam Other Question

For this question pretend you are drawing cards without replacement from the infamous "Iraq's Most Wanted" deck issued by the U.S. Military before Saddam Hussein and his gang were The sum of three consecutive even numbers is 60. What are the the 3 numbers? Can someone help me figure this one out?