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6 November, 21:11

Q5. If 3x=6x-15 then x + 8=

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Answers (2)
  1. 6 November, 21:20
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    The answer is 13. Subtract 6x from both sides to get - 3x = - 15 so x equals 5.

    5+8=13
  2. 6 November, 21:25
    0
    First you have to find the value for x, so solve the equation 3x=6x-15. Subtract 6x from both sides to get - 3x=-15. Finally, divide both sides by - 3 to get x=5. Plus 5 into the x value for the other equation. 5+8=13
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