9a + 15 = 10a – 7 Solve please

Question

9a + 15 = 10a – 7
Solve please

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Ivy 2 months 2021-10-13T23:44:39+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-10-13T23:45:52+00:00

    subtract 9a from both sides
    9a – 9a + 15 = 10a – 9a + 7
    15 = a – 7
    add 7 to both sides
    15 + 7 = a – 7 + 7
    a = 22

    0
    2021-10-13T23:46:29+00:00

    Answer: a = 22

    Step-by-step explanation:

    9a + 15 = 10a – 7

    Step 1: combine like terms

    9a – 10a= -7 -15

    -1a = -22

    a = 22

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