In the equation 2r – 7 = 15, what value of r makes this equation true?

Question

In the equation 2r – 7 = 15, what value of r makes this equation true?

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Hưng Khoa 3 years 2021-08-18T14:15:29+00:00 1 Answers 1 views 0

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  1. Bo
    0
    2021-08-18T14:17:08+00:00
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    Answer:

    r = 11 makes 2r – 7 = 15 true.

    Step-by-step explanation:

    2r – 7 = 15

    Add 7 to both sides.

    2r = 22

    Divide by 2.

    r = 11

    Proof:

    2r – 7 = 15

    2(11) – 7 = 15

    22 – 7 = 15

    15 = 15

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