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Solve for x: 3|x + 7| = 12
3|x + 7| = 12 3x+21 = 12 3x = -9 x = -3 -3(x+7) = 12 -3x-21 = 12 -3x = 33 -x = 11 x = -11
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Asked 4/21/2017 10:22:11 AM
Updated 242 days ago|1/25/2021 10:41:15 AM
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3|x + 7| = 12
3x+21 = 12
3x = -9
x = -3
-3(x+7) = 12
-3x-21 = 12
-3x = 33
-x = 11
x = -11
Added 242 days ago|1/25/2021 10:41:15 AM
This answer has been confirmed as correct and helpful.
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Updated 5/2/2017 6:08:04 PM
1 Answer/Comment
7 - [x - (-2x + 9)]
= 7 - [x + 2x - 9]
= 7 - 3x + 9
= 16 - 3x
Added 5/2/2017 6:08:04 PM
This answer has been confirmed as correct and helpful.
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