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Two times a number added to -3, subtracted from triple the sum of three times the number and 4
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Two times a number added to -3, subtracted from triple the sum of three times the number and 4

User Giles Bathgate
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2x + (-3) - 3(x+4) do parenthesis to get
2x -3 - 3x -12. Simplify to get -x -15
User Marthin
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