Q: Solve for x.
3(x + 5) - 2(x + 2) = 20
1
9
13

A: 3(x + 5) - 2(x + 2) = 20 3x + 15 - 2x - 4 = 20 3x - 2x = 20 -15 + 4 x = 9

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Asked 9/14/2012 12:17:23 PM

Updated 9/14/2012 12:23:53 PM

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

3x + 15 - 2x - 4 = 20

3x - 2x = 20 -15 + 4

x = 9

3x + 15 - 2x - 4 = 20

3x - 2x = 20 -15 + 4

x = 9

Added 9/14/2012 12:23:53 PM

This answer has been confirmed as correct, not copied, and helpful.

Confirmed by andrewpallarca [1/22/2014 9:36:20 AM]

Which of the following equations has no solution?
3x+ 1 = 2x + 1
3x+ 1 = 3x+ 1
3x+ 1 = 3x+ 2 **Weegy:** 9x^4. If you are satisfied with my answer, please click 'Good' on the ratings. Thank you! (More)

Question

Expert Answered

Updated 11/29/2014 10:05:01 PM

1 Answer/Comment

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

3x + 1 = 3x + 2;

3x - 3x = 2 - 1;

0 = 1

3x + 1 = 3x + 2;

3x - 3x = 2 - 1;

0 = 1

Added 11/29/2014 10:05:00 PM

This answer has been confirmed as correct, not copied, and helpful.

If 5 liters of a solution are 20% acid, how much of the solution is acid?
0.2 liters
1 liter
2 liters

Question

Expert Answered

Updated 12/22/2015 10:32:56 PM

1 Answer/Comment

Find the common difference of the sequence shown.
, , 0, ...
-1/8
-1/4
-1/2 **Weegy:** B.-1/4 is the answer. 1/2, 1/4 , 0, -1/4 is the sequence (More)

Question

Expert Answered

Updated 8/28/2014 9:13:41 AM

1 Answer/Comment

The sequence 0,...-1/8, -1/4, -1/2 does not have a common difference, it has a common ratio.

Added 8/28/2014 9:13:41 AM

This answer has been confirmed as correct, not copied, and helpful.

Find two consecutive integers whose sum is 67.
Which of the following equations could be used to solve the problem?
2x= 67
2x+ 1 = 67
2x+ 2 = 67
x2+ 1= 67

Question

Expert Answered

Updated 8/28/2014 9:30:22 AM

1 Answer/Comment

To find two consecutive integers whose sum is 67 use the equation 2x + 1= 67

Added 8/28/2014 9:29:48 AM

This answer has been confirmed as correct, not copied, and helpful.

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