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The product of 8 and the sum of 4 and a number is 112. What is the number?
Which equation could be used to solve for the number?
8 + 4n = 112
8 x 4 + n = 112
8(4 + n) = 112

Question

Asked 7/9/2013 10:50:42 AM

Updated 6/9/2014 10:49:33 PM

4 Answers/Comments

This conversation has been flagged as incorrect.

Flagged by yeswey [6/9/2014 10:45:44 PM]

debnjerry|Points 48451|

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-2x + 9x = 42

7x = 42

x = 6

Marvel2|Points 753|

Jodynoel613|Points 10|

vchutkan|Points 5779|

debnjerry|Points 48451|

nicolevaughan16|Points 156|

debnjerry|Points 48451|

Question

Asked 7/9/2013 10:50:42 AM

Updated 6/9/2014 10:49:33 PM

4 Answers/Comments

This conversation has been flagged as incorrect.

Flagged by yeswey [6/9/2014 10:45:44 PM]

Rating

3

If 5 liters of a solution are 20% acid, the amount of solution that is acid is: 5*20% = 5*0.2 = 1 liter.

Added 6/9/2014 10:45:41 PM

This answer has been confirmed as correct and helpful.

Confirmed by jeifunk [6/9/2014 10:56:33 PM]

3

3(x + 5) - 2(x + 2) = 20

3x + 15 - 2x - 4 = 20

x + 11 = 20

x = 20 - 11

x = 9

3x + 15 - 2x - 4 = 20

x + 11 = 20

x = 20 - 11

x = 9

Added 6/9/2014 10:46:47 PM

This answer has been confirmed as correct and helpful.

Confirmed by jeifunk [6/9/2014 10:56:48 PM]

3

3x + 1 = 3x + 2 has no solution.

3x + 1 = 3x + 2

3x - 3x = 2 - 1

0 = 1 which is a false statement.

There is no solution for the equation 3x + 1 = 3x + 2

3x + 1 = 3x + 2

3x - 3x = 2 - 1

0 = 1 which is a false statement.

There is no solution for the equation 3x + 1 = 3x + 2

Added 6/9/2014 10:47:52 PM

This answer has been confirmed as correct and helpful.

Confirmed by jeifunk [6/9/2014 10:56:56 PM]

3

-3x = -15

x = -15/-3

x = 5

x = -15/-3

x = 5

Added 6/9/2014 10:49:33 PM

This answer has been confirmed as correct and helpful.

Confirmed by jeifunk [6/9/2014 10:57:07 PM]

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