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Citrus2011 [14]
3 years ago
13

The product of a number and 9 less than the number is 90. find the number.

Mathematics
1 answer:
Arte-miy333 [17]3 years ago
5 0
Factors of 36 that differ by 9 are 12 and 3; 
<span>12*3 = 36 </span>
<span>Or you could write x(x - 9) - 36 = (x - 12)(x + 3) = 0 </span>
<span>The number was 12</span>
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