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17 July, 02:37

Is (1, 1) a solution to this system of equations?

11x+3y=18

4x+y=5

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Answers (1)
  1. 17 July, 02:58
    0
    system of equations (1,1)

    put value of these x and y in equations

    (x, y) = (1,1)

    so this solution not satisfied equation 1

    11 (1) + 3 (1) = 18

    so 11 + 3 = 18

    15 = 18 (Left side not equal to right side)

    (1,1) is not solution for 11x + 3y=18

    2. 4x+y = 5

    put values (1,1)

    4 (1) + (1) = 5

    5 = 5 { left side = right side)

    so (1,1) is solution for 4x + y=5
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