Solve using the elimination method. 2x + 7y = 36 6x – 7y = – 60 ​

Question

Solve using the elimination method. 2x + 7y = 36
6x – 7y = – 60 ​

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Thiên Thanh 3 years 2021-08-09T14:11:23+00:00 2 Answers 10 views 0

Answers ( )

  1. Eirian
    0
    2021-08-09T14:12:39+00:00
    Reply

    Point form: (-3,6)
    Equation form: x=-3, y=6

  2. Dulcie
    0
    2021-08-09T14:13:11+00:00
    Reply

    Answer:

    x=-3

    y=6

    Step-by-step explanation:

    Elimination method:

    2x+7y=36

    6x-7y=-60

    Add these equation to eliminate y:

    8x=-24

    Then solve 8x=-24 for x:

    8x=-24

    \frac{8x}{8} =\frac{-24}{8}

    x=-3

    Add the value of x to solve y:

    2x+7y=36

    Substitute -3 for x in 2x+7y=36

    (2)(-3)+7y=36

    7y-6=36

    7y=36+6

    7y=42

    y=42/7\\

    y=6

    { x=-3 and y=6 }

    hope this helps….

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )