exam Maths Puzzle Numerical Ability

solve by substitution: x-2y=-3 and y-2x-3

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exam Other Question

The square root of 5 - 3

DIVIDED BY

The square root of 5 - 2
If g(x) is an inverse of f(x), then how do the ordinate and abscissa coordinates of the points on f(x) map onto coordinates of g(x)?