Solue the equation find the value of x andy 7y+10x=-11 4y-3x=-15 ​

Question

Solue the equation
find the
value of x andy
7y+10x=-11
4y-3x=-15

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Ivy 3 weeks 2021-10-04T02:10:18+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-10-04T02:11:24+00:00

    Step-by-step explanation:

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    0
    2021-10-04T02:12:13+00:00

    Answer:

    {y,x} = {-3,1}

    Step-by-step explanation:

    [1] 7y + 10x = -11

    [2] 4y – 3x = -15

    // Solve equation [2] for the variable y

    [2] 4y = 3x – 15

    [2] y = 3x/4 – 15/4

    // Plug this in for variable y in equation [1]

    [1] 7•(3x/4-15/4) + 10x = -11

    [1] 61x/4 = 61/4

    [1] 61x = 61

    // Solve equation [1] for the variable x

    [1] 61x = 61

    [1] x = 1

    // By now we know this much :

    y = 3x/4-15/4

    x = 1

    // Use the x value to solve for y

    y = (3/4)(1)-15/4 = -3

    {y,x} = {-3,1}

    where,x=1 and y=-3

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