If the first step in the solution of the equation 2x - 8 = 5x + 3 is "subtract 2x," then what should the next step be?

Question

Asked 3/13/2013 7:10:28 AM

Updated 4/1/2014 8:14:15 AM

5 Answers/Comments

This conversation has been flagged as incorrect.

Flagged by yeswey [4/1/2014 8:04:55 AM]

rodnix|Points 396|

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andrewpallarca|Points 20198|

7x+ 6x+7 - 9

13x-2

Controler|Points 3928|

chico007hgo|Points 522|

chico007hgo|Points 522|

ramkitten|Points 7315|

y = 13 + 10,

y = 23

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Question

Asked 3/13/2013 7:10:28 AM

Updated 4/1/2014 8:14:15 AM

5 Answers/Comments

This conversation has been flagged as incorrect.

Flagged by yeswey [4/1/2014 8:04:55 AM]

Rating

3

7x - 3/8 = 6x - 5/8

7x - 6x = 3/8 - 5/8

x = -2/8

x = -1/4

7x - 6x = 3/8 - 5/8

x = -2/8

x = -1/4

Added 4/1/2014 8:05:32 AM

This answer has been confirmed as correct and helpful.

Confirmed by alfred123 [4/1/2014 8:07:30 AM]

3

3x - 4 = 2x - 10

3x - 2x = 4 - 10

x = -6

3x - 2x = 4 - 10

x = -6

Added 4/1/2014 8:06:25 AM

This answer has been confirmed as correct and helpful.

Confirmed by alfred123 [4/1/2014 8:07:34 AM]

3

13x + 7 = 5x - 20

13x - 5x = - 20 - 7

8x = - 27

x = -27/8

13x - 5x = - 20 - 7

8x = - 27

x = -27/8

Added 4/1/2014 8:07:35 AM

This answer has been confirmed as correct and helpful.

Confirmed by alfred123 [4/1/2014 8:09:47 AM]

3

18 - 3n + 2 = n + 20 - 4n

20 - 3n = 20 - 3n

-3n + 3n = 20 - 20

0 = 0

Therefore, the solution set of 18 - 3n + 2 = n + 20 - 4n is all reals

20 - 3n = 20 - 3n

-3n + 3n = 20 - 20

0 = 0

Therefore, the solution set of 18 - 3n + 2 = n + 20 - 4n is all reals

Added 4/1/2014 8:10:39 AM

This answer has been confirmed as correct and helpful.

Confirmed by jeifunk [4/1/2014 8:17:45 AM]

3

7 + x - 15 = -2 2/3

x - 8 = - 8/3

x = 8 - (8/3) = 24/3 - (8/3) = 16/3

x - 8 = - 8/3

x = 8 - (8/3) = 24/3 - (8/3) = 16/3

Added 4/1/2014 8:14:15 AM

This answer has been confirmed as correct and helpful.

Confirmed by jeifunk [4/1/2014 8:17:45 AM]

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