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22-09-2017
Mathematics

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Twice the difference of a number and 4 is equal to three times the sum of the number and 7. find the number.

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texaschic101 texaschic101

22-09-2017

2(x - 4) = 3(x + 7)
2x - 8 = 3x + 21
-21 - 8 = 3x - 2x
-29 = x <==

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