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9x - 8 = 90
Question
Asked 1/14/2015 7:46:57 AM
Updated 1/14/2015 8:07:29 AM
1 Answer/Comment
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User: 9x - 8 = 90

Weegy: (9x + 4)(9x - 4)

= 81x^2 - 36x + 36x - 16;

= 81x^2 - 16


Question
Asked 1/14/2015 7:46:57 AM
Updated 1/14/2015 8:07:29 AM
1 Answer/Comment
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9x - 8 = 90
9x = 90 + 8 = 98
x = 98/9 = 10 8/9
Added 1/14/2015 8:07:26 AM
This answer has been confirmed as correct and helpful.
Confirmed by sujaysen [1/14/2015 8:09:03 AM]
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Questions asked by the same visitor
Is it possible to construct a triangle with side lengths of 15 inches, 17 inches, and 32 inches? Why or why not?
Question
Updated 1/10/2015 1:40:54 PM
1 Answer/Comment
Is it possible to construct a triangle with side lengths of 15 inches, 17 inches, and 32 inches?
No, because 15 + 17 = 32
Added 1/10/2015 1:40:54 PM
This answer has been confirmed as correct and helpful.
Confirmed by andrewpallarca [1/10/2015 1:48:13 PM]
3x+3 = 7x - 5
Question
Updated 1/18/2015 10:13:15 PM
1 Answer/Comment
3x + 3 = 7x - 5
3x - 7x = -5 - 3
-4x = -8
x = -8/-4 = 2
Added 1/18/2015 10:13:15 PM
This answer has been confirmed as correct and helpful.
Confirmed by Andrew. [1/18/2015 10:14:30 PM]
2x - 11 = 2x - 2
Weegy: 2x - 3 = 9 2x = 9 + 3 2x = 12 x = 12/2 x = 6 (More)
Question
Updated 1/14/2015 7:58:57 AM
1 Answer/Comment
2x - 11 = 2x - 2

2x - 2x = -2 + 11;

0 = 9 (FALSE)

NO SOLUTIONS EXIST
Added 1/14/2015 7:58:57 AM
This answer has been confirmed as correct and helpful.
Confirmed by sujaysen [1/14/2015 8:00:14 AM]
3y+9 = 180
Question
Updated 1/16/2015 9:52:27 AM
1 Answer/Comment
3y+9 = 180;

3y = 180 - 9;

3y = 171;

y = 171/3;

y = 57
Added 1/16/2015 9:52:27 AM
This answer has been confirmed as correct and helpful.
Confirmed by yumdrea [1/16/2015 9:55:51 AM]
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