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Simplify the following expression using PEMDAS Evaluate: 3xy – 7x When x = 2 and y = -1
3xy – 7x When x = 2 and y = -1 3(2)(-1) - 7(2) -6 - 14 = -20
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Asked 9/30/2011 9:07:57 PM
Updated 2/27/2014 12:51:04 PM
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3xy – 7x When x = 2 and y = -1

3(2)(-1) - 7(2)

-6 - 14

= -20
Added 2/27/2014 12:51:04 PM
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Divide –5 by – 2.5 and multiply the result by – 6.
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Updated 9/24/2011 10:25:22 PM
1 Answer/Comment
(-5) / (-2.5) = 2. Now (-6) / 2 = -3
Added 9/24/2011 10:25:22 PM
This answer has been confirmed as correct and helpful.
Confirmed by andrewpallarca [2/27/2014 12:52:17 PM]
When 231/385 is reduced to its lowest term we get:
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Updated 7/25/2015 4:46:15 AM
1 Answer/Comment
When 231/385 is reduced to its lowest term we get: 3/5
Added 7/25/2015 4:46:15 AM
This answer has been confirmed as correct and helpful.
Confirmed by Andrew. [7/25/2015 6:04:29 AM]
Simplify the following expression using PEMDAS 4(5 + 3x) – 5( -4 – 2x)
Weegy: 4(5 + 3x) - 5(-4 - 2x) = 20 + 12x - (-20 - 10x) = 20 + 12x + 20 + 10x, we then group like terms together: 40 + 22x. Your final answer is 40 + 22x (More)
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Updated 5/31/2014 5:00:03 PM
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Solve: 7x – 11 = 9x – 13
Weegy: 7x – 11 = 9x – 13, 7x - 9x = -13 + 11, -2x = -2, x = -2/-2, x = 1 (More)
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Expert Answered
Updated 2/1/2014 2:26:16 PM
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how to solve 9( x-2 ) = 8( x+ 1)
Weegy: 6(x+4)=8(x-2) 6x+ 24 = 8x -16 24+16 = 8x-6x 40 = 2x 40/2 = x 20= x Answer is x =20 User: how to solve -3( x + 2 ) = 18 Weegy: D.) { x | x > -3 } User: How to solve 4x – 3 + 2x = 8x – 3 – x Weegy: 4x – 3 + 2x = 8x – 3 – x =>2x-3=7x-3 =>3-3=7x-2x =>5x=0 =>x=0/5 =>x=0. User: How to solve for x 5x + 4 = 34 Weegy: x+5x + 4 = 34 =>6x= 34-4 =>x= 30/6 => x=5 User: How to solve for x -9x + 9 = -18 Weegy: x -9x + 9 = -18 =>-8x= -18-9 =>x= -27/-8 =>x= 27/8 (More)
Question
Expert Answered
Updated 9/25/2014 10:42:29 PM
4 Answers/Comments
9(x - 2) = 8(x + 1)
9x - 18 = 8x + 8
9x - 8x = 8 + 18
x = 26
Added 9/25/2014 10:38:47 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [9/25/2014 10:49:08 PM]
-3(x + 2) = 18
-3x - 6 = 18
-3x = 18 + 6 = 24
x = 24/-3 = -8
Added 9/25/2014 10:41:01 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [9/25/2014 10:49:18 PM]
5x + 4 = 34
5x = 34 - 4 = 30
x = 30/5 = 6
Added 9/25/2014 10:41:49 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [9/25/2014 10:49:40 PM]
-9x + 9 = -18
-9x = -18 - 9 = -27
x = -27/-9 = 3
Added 9/25/2014 10:42:29 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [9/25/2014 10:49:50 PM]
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