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Kelly Gentry
Mathematics
14 September, 02:35
Solve: 3x 12-{2x-[5 (x-3) - 3]=3 (x-5)
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Ray Brock
14 September, 02:50
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3x + 12 - {2x - [5 (x - 3) - 3]} = 3 (x - 5)
3x + 12 - {2x - [5x - 15 - 3]} = 3x - 15
3x + 12 - {2x - [5x - 18]} = 3x - 15
3x + 12 - {2x - 5x + 18} = 3x - 15
3x + 12 - {-3x + 18} = 3x - 15
3x + 12 + 3x - 18 = 3x - 15
6x - 6 = 3x - 15
6x - 3x = - 15 + 6
3x = - 9
x = - 9/3 = - 3
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