Which is the best first step and explanation for solving this system of equations? 3x+4y=12 3x=2y-8​

Question

Which is the best first step and explanation for solving this system of equations?
3x+4y=12
3x=2y-8​

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Peyton 1 day 2021-10-12T13:26:25+00:00 1 Answer 0

Answers ( )

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    2021-10-12T13:28:04+00:00

    Answer:

    x=-4/9, y=10/3. (-4/9, 10/3).

    Step-by-step explanation:

    3x+4y=12

    3x=2y-8

    ————–

    2y-8+4y=12

    6y-8=12

    6y=12+8

    6y=20

    y=20/6

    simplify,

    y=10/3

    3x=2(10/3)-8

    3x=20/3-8

    3x=20/3-24/3

    3x=-4/3

    x=(-4/3)/3

    x=(-4/3)(1/3)=-4/9

    x=-4/9, y=10/3. (-4/9, 10/3).

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