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31 December, 06:43

What is the common difference for the sequence below: (6x + 3), (9x + 3), (2x + 3), ... *

Subtracting 3x each time

Adding 3x each time

Adding 3 each time

Subtracting 3 each time

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Answers (1)
  1. 31 December, 09:24
    0
    Adding 3x each time

    Step-by-step explanation:

    To find the difference, subtract the 1st value from the 2nd; 2nd value from the 3rd; ...

    (6x + 3) = 1st value

    (9x + 3) = 2nd value

    (12x + 3) = 3rd value

    9x+3 - (6x+3)

    9x+3-6x-3

    9x-6x=3x

    Check

    6x+3+3x

    =9x+3

    12x+3 - (9x+3)

    12x+3-9x+3

    12x-9x=3x

    Check

    9x+3+3x

    =12x+3
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