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24 July, 11:23

Twice the difference of a number and 4 is equal to three times the sum of the number and 9. Find the number.

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  1. 24 July, 11:52
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    Twice the difference of a number and four: 2 (x - 4) three times the sum of the number and 2: 3 (x + 2) 2 (x - 4) = 3 (x + 2) 2x - 8 = 3x + 6-14 = x to confirm2[ (-14) - 4] = 2 (-18) = - 363 [ (-14) + 2] = 3 (-12) = - 36
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