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Evaluate. -|-7 + 3| A.-4 B.4 C.-10
-|-7 + 3|; -7 + 3 = -4
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Asked 6/20/2011 8:29:00 AM
Updated 4/26/2014 6:54:44 PM
1 Answer/Comment
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-|-7 + 3|;


-7 + 3 = -4
Added 4/26/2014 6:54:44 PM
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Questions asked by the same visitor
Solve |2x - 5| = 4.
Question
Not Answered
Updated 8/24/2014 3:46:36 PM
1 Answer/Comment
|2x - 5| = 4

2x - 5 = -4 or 2x - 5 = 4

2x - 5 = -4;
2x = -4 + 5;
2x = 1;
x = 1/2;

2x - 5 = 4;
2x = 4 + 5;
2x = 9;
x = 9/2;

x = 1/2 or x = 9/2
Added 8/24/2014 2:47:21 PM
This answer has been confirmed as correct and helpful.
Confirmed by andrewpallarca [8/24/2014 3:46:37 PM]
Solve the following system of equations by the substitution method. "5x = y + 6," "2x - 3y = 4"
Question
Updated 9/14/2014 1:09:10 AM
6 Answers/Comments
janezshun, please make sure to clearly type your solutions by using proper spacing.
Added 9/10/2014 7:00:16 AM
Hi andrew , for these question, Can I simplify or didn't use to add the calculation steps? I think I can't simplify it ,because the question asked to use the substitution method.
Added 9/10/2014 8:01:36 AM
The solution for 5x = y + 6, 2x - 3y = 4 is x = 14/13, y = -8/13.
From 5x = y + 6 , we can get y = 5x - 6, which we can put it into the 2th equation.
2x - 3y = 4
2x - 3 (5x - 6) =4
-13x + 18 =4
x = 14/13

put x = 14/13 into the y = 5x - 6 , we can get the value of y
y= 5x - 6
y= 5*14/13 - 78/13
y= 70/13-78/13
y= - 8/13
Added 9/14/2014 1:09:10 AM
Solve "4(x + 5) 13} C.{x | x > 7} D.{x | x < 13}
Question
Updated 168 days ago|12/3/2018 4:38:05 AM
1 Answer/Comment
4(x + 5) < 6x + 6 ;
4x + 20 < 6x + 6 ;
4x - 6x < 6 - 20 ;
-2x > -14 ;
x < -14/-2 ;
x < 7 ;
{x | x < 7}
Added 168 days ago|12/3/2018 4:38:05 AM
This answer has been confirmed as correct and helpful.
Evaluate. -|-7 + 3|
Weegy: Two Negatives would equal a positive so the equation would be 7+ -3= Which would equal a positive 4 (More)
Question
Expert Answered
Updated 1/12/2015 8:55:41 AM
1 Answer/Comment
-|-7 + 3| = -|-4| = -4
Added 1/12/2015 8:55:37 AM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [1/12/2015 9:02:42 AM]
Simplify (5ab^4 c)(-abc^2).
Question
Expert Answered
Updated 6/6/2015 12:20:43 PM
1 Answer/Comment
(5ab^4 c)(-abc^2)
= -5a^2b^5c^3
Added 5/3/2015 3:08:35 AM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [6/6/2015 12:20:39 PM]
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