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Maths Puzzle
Numerical Ability
solve:y-3.5y-3=1.8(y+5.5)
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6y^2-41y-7
( 6y-1)(y-7)
The curve y=ax^2 +bx+c passes through the points (x1,y1), (x2,y2), and (x3,y3). Show that the coefficients a, b, and c are a solution of the system of linear equations whose augme