A natural number,when increased by 12
Becomeeqial to 160time its reciprocal. Find the number.
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x+12 = 160/x
x²+12x-160 =0
x²+20x-8x-160=0
x(x+20)-8(x+20)
(x-8)(x+20)
x=8, x=-20
Answer is 8
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