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28 February, 17:03

Find a26 in the arithmetic sequence: - 15, - 35, - 55, - 75

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  1. 28 February, 20:22
    0
    Answer: x=-5

    Step-by-step explanation:

    Step 1: Simplify both sides of the equation.

    -4-7x=31

    -4+-7x=31

    -7x-4=31

    Step 2: Add 4 to both sides.

    -7x-4+4=31+4

    -7x=35

    Step 3: Divide both sides by - 7.

    -7x

    -7

    =

    35

    -7

    x=-5
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