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secondary 3 | A Maths
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2x = 6xy-2
x = 3xy-1
x = 3x(x-1)/2-1
2x = 3x(x-1)-2
3x²-5x-2 = (3x+1)(x-2) = 0
x1 = -⅓ ; y1 = (-1-⅓)/2 = -⅔
x2 = 2 ; y2 = (2-1)/2 = ½
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