3(x + 5) - 2(x + 2) = 20 1 9 13
Question
Updated 5/29/2014 9:39:19 AM
This conversation has been flagged as incorrect.
Flagged by yeswey [5/29/2014 9:38:26 AM]
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Original conversation
User: 3(x + 5) - 2(x + 2) = 20 1 9 13

Weegy: x - 9 = -6x + 5; x + 6x = 5 + 9; 7x = 14; x = 14/7; x = 2
debnjerry|Points 43389|

User: Which of the following equations has no solution? 3x + 1 = 2x + 1 3x + 1 = 3x + 1 3x + 1 = 3x + 2

Weegy: 3x + 1 = 2x + 12 x = 11
Mikee7|Points 174|

User: 3x - 5x + 8x + x = 42 6 7 8

User: What is the percent of decrease on an item that went from \$25 to \$20? 20% 25% 80%

Question
Updated 5/29/2014 9:39:19 AM
This conversation has been flagged as incorrect.
Flagged by yeswey [5/29/2014 9:38:26 AM]
Rating
8
3(x + 5) - 2(x + 2) = 20
3x + 15 - 2x - 4 = 20
x + 11 = 20
x = 20 - 11 = 9
Confirmed by jeifunk [5/29/2014 9:58:33 AM]
8
3x + 1 = 3x + 2 has no solution.
3x + 1 = 3x + 2
3x - 3x = 2 - 1
0 = 1 which is a false statement, therefore, 3x + 1 = 3x + 2 has no solution.
8
3x - 5x + 8x + x = 42
-2x + 8x + x = 42
6x + x = 42
7x = 42
x = 42/7 = 6
Confirmed by jeifunk [5/29/2014 9:58:55 AM]
8
The percent of decrease on an item that went from \$25 to \$20 is: (25 - 20)/25 * 100% = 20%
Confirmed by jeifunk [5/29/2014 9:58:56 AM]

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