​​5x−4y=−10 ​−4x+5y=8 ​​Solve System of equations

Question

​​5x−4y=−10
​−4x+5y=8
​​Solve System of equations

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Answers ( No )

    0
    2021-09-19T04:33:55+00:00

    5y = 4x + 8 and y = 4x/5 + 8/5

    0
    2021-09-19T04:34:15+00:00

       {5x−4y=−10  ⇒ 5x = 4y-10  ⇒  x=(4y-10)/5  ⇒  x = 0.8y – 2
    ​   {-4x+5y=8

    -4(0.8y-2) + 5y = 8
    -3.2y + 8 + 5y = 8
    1.8y = 8 – 8
    1.8y = 0
    y = 0

    5x−4·0=−10
    5x = -10
    x = -10/5
    x = -2

    Your answer is (-2, 0)

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