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29 May, 12:35

Mrs. Porte wrote the equation below on the board.

ax + 7 = 8x + b

Enter values of a and b for which x = 9 is a solution of Mrs. Porte's equation.

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  1. 29 May, 13:15
    0
    b=-65

    Step-by-step explanation:

    7 = 8x+b

    Put in 9 for x

    7 = 8 (9) + b

    Multiply.

    7=72 + b

    subtract 72 from both sides to get b by itself.

    (7-72) = (72-72) + b

    Simplify.

    -65 = b
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