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OpenStudy (anonymous):
The difference of 21 and the product of 5 and a number is less than 7?
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OpenStudy (anonymous):
Isn't it 21-5x-7?
OpenStudy (mertsj):
The product of 5 and a number is 5x So 21-5x<7
OpenStudy (anonymous):
I get it . The less than part should've been <
OpenStudy (mertsj):
yep
OpenStudy (anonymous):
hmm, we're talking about a difference here, so it could be either more or less than 21. Therefor you should use absolute value: |21-5x|<7
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OpenStudy (anonymous):
Thanks Thomas !
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