exam Maths Puzzle Numerical Ability

Use elimination to solve each system of equations.

a-2b=5
3a-2b=9

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exam Other Question

To me, this looks like a question not to hard to solve, but yet I am stuck on it. It asks, in Parallelogram ABCD, M Can you help me with setting up and solving this problem?
A consumer electronics company sells 6.7 million MP3 players per month at a price of $100 apiece; when the price is lower