exam
Maths Puzzle
Numerical Ability
solving the following system of equations
x-2y=5
-3x+2y=7
Is x=3 and y=-1 correct?
Thanks
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exam Other Question
if m<6 =72, then m<7 =
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A chemist needs 900 millileters of a 40% acid solution for a chemistry experiment. The chemist combines x milliliters of a 20% acid solution and y m