exam Maths Puzzle Numerical Ability

3x+y=5
-2x+3y+4

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exam Other Question

High-risk funds. Of the $50,000 that Natasha pocketed
on her last real estate deal, $20,000 went to charity. She
invested part of the remainder in Dreyfus New Leaders
Fund with
-5-3x-x-(-16) if x=-1