length of rectangular filed is increased by 8 metres and breadth is decreased by 4 metres, area of the field remains unchanged. if length be decreased by 6m and breadth be increased by 5m, again area remains unchanged. Find the area of the rectangle.
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(x+8)(y-4) = (x-6)(y+5)
xy-4x+8y-32 = xy+5x-6y-30
9x-14y+2 = 0
anjalimummidivarapu:
I can't understand
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