If B is between A and C, and AB=3x+1 and BC=2x-7, and AC=19, find the length of AB.

Question

If B is between A and C, and AB=3x+1 and BC=2x-7, and AC=19, find the length of AB.

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Gerda 5 years 2021-08-30T10:23:35+00:00 1 Answers 17 views 0

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  1. Adela
    0
    2021-08-30T10:25:25+00:00
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    Answer:

    16

    Step-by-step explanation:

    AB+BC=AC

    3x+1+2x-7=19

    5x-6=19

    5x=25

    x=5

    AB=3x+1

    AB=3(5)+1

    AB=15+1

    AB=16

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