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17. Solve the equation. Show your work. 8x – 12 = 4x + 24
8x + 12 = 4x + 24; 8x - 4x = 24 - 12; 4x = 12; x = 12/4; x = 3
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Asked 5/1/2015 10:06:06 PM
Updated 5/1/2015 11:09:39 PM
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Confirmed by jeifunk [5/1/2015 11:09:39 PM]
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What is the solution of the system? Use elimination. 3x – 4y = 9 –3x + 2y = 9 A. (3, 9) B. (–27, –9) C. (–3, –6) D. (–9, –9)
Weegy: 3x – 4y = 9 –3x + 2y = 9 (3x – 4y = 9) + (–3x + 2y = 9); -2y = 18; y = 18/-2; y = -9; 3x – 4(-9) = 9; 3x + 36 = 9; 3x = 9 - 36; 3x = -27; x = -27/3; x = -9; The solution set is (–9, –9). (More)
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Updated 5/2/2015 4:51:03 AM
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11. Solve the inequality. Show your work. |r + 3| 7
Weegy: |r + 3| = 7; r = 4 or r = -10 r + 3 = 7; r = 7 - 3; r = 4; -(r + 3) = 7; -r - 3 = 7; -r = 7 + 3; -r = 10; r = -10 (More)
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Updated 5/1/2015 11:01:05 PM
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4. Simplify the expression. -3(b – 7)
Weegy: -3(b - 7) = -3b + 21 (More)
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Updated 6/6/2015 12:41:47 PM
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3. Simplify the expression. 9xy2 – 11xy2
Weegy: 9xy^2 - 11xy^2 = -2xy^2. (More)
Question
Updated 6/6/2015 12:42:23 PM
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1. Simplify the expression. Show your work. 22 + (32 – 42)
Weegy: 22 + (32 - 42) = 22 + (-10) = 22 - 10 = 12 (More)
Question
Updated 6/6/2015 12:39:07 PM
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