Help ASAP Select the two values of x that are roots of 7x – 15 = -2x. A. x=-5 B. x=5 C. x= -3/2 D.

Question

Help ASAP

Select the two values of x that are roots of 7x – 15 = -2x.

A. x=-5
B. x=5
C. x= -3/2
D. x=3/2

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Skylar 3 weeks 2022-01-03T08:48:42+00:00 2 Answers 0 views 0

Answers ( )

    0
    2022-01-03T08:49:42+00:00

    Answer:

    x = 5/3

    Step-by-step explanation:

    Solve for x:

    7 x – 15 = -2 x

    Add 2 x to both sides:

    7 x + 2 x – 15 = 2 x – 2 x

    2 x – 2 x = 0:

    7 x + 2 x – 15 = 0

    7 x + 2 x = 9 x:

    9 x – 15 = 0

    Add 15 to both sides:

    9 x + (15 – 15) = 15

    15 – 15 = 0:

    9 x = 15

    Divide both sides of 9 x = 15 by 9:

    (9 x)/9 = 15/9

    9/9 = 1:

    x = 15/9

    The gcd of 15 and 9 is 3, so 15/9 = (3×5)/(3×3) = 3/3×5/3 = 5/3:

    Answer: x = 5/3

    0
    2022-01-03T08:49:50+00:00

    7x-15=-2x
    +7 +7
    -15=5x
    -15 divided by 5 gives yu
    X=-3

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