if DE = 7x + 3 and EF = 9x – 19, then EF = ?

Question

if DE = 7x + 3 and EF = 9x – 19,
then EF = ?

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RI SƠ 3 years 2021-08-16T01:14:10+00:00 1 Answers 34 views 0

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  1. MichaelMet
    0
    2021-08-16T01:16:05+00:00
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    Answer:

    Step-by-step explanation:

    7x + 3 = 9x – 19

    -2x + 3 = -19

    -2x = -22

    x = 11

    DE= 7(11) + 3 = 77 + 3 = 80

    EF = 9(11) – 19 = 99 – 19 = 80

    80 + 80 = 160 for DF

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