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21/x = 7/5
21/x = 7/5 x = (7/5)/(21) x = (21 * 5)/7 x = 105/7 x = 15
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Asked 6/21/2013 8:39:01 PM
Updated 3/1/2017 4:31:05 AM
1 Answer/Comment
Edited by Andrew. [3/1/2017 4:31:03 AM]
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21/x = 7/5
x = (7/5)/(21)
x = (21 * 5)/7
x = 105/7
x = 15
Added 3/1/2017 4:31:05 AM
This answer has been confirmed as correct and helpful.
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(X + 2)(x + 1)
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Updated 9/1/2014 5:07:27 PM
1 Answer/Comment
(x + 2)(x + 1)

= x^2 + x + 2x + 2;

= x^2 + 3x + 2
Added 9/1/2014 5:07:27 PM
This answer has been confirmed as correct and helpful.
Confirmed by yumdrea [9/1/2014 5:10:21 PM]
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Expert Answered
Updated 7/31/2014 4:36:34 PM
1 Answer/Comment
(x + 2)(x + 1)
= x^2 + x + 2x + 2
= x^2 + 3x + 2
Added 7/31/2014 4:36:32 PM
This answer has been confirmed as correct and helpful.
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