exam Maths Puzzle Numerical Ability

Chapter:The Elimination Method
2x+4y=40
7x-3y=4

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exam Other Question

Points K, L and M are collinear and the coordinates of L is greater than the
coordinate of K. If KM = ML = 6, and the coordinate of M is 3. What are the coordinates of K and L? The process of writing a quadratic equation in the form (x + a)^2 = b is called_______________________