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13 February, 13:44

2x - y = 11

6x - 3y = 15

solve for x and y using elimination

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Answers (1)
  1. 13 February, 17:06
    0
    Step-by-step explanation:

    Given the simultaneous equation

    2x - y = 11. Equation 1

    6x - 3y = 15. Equation 2

    Using elimination method

    Multiply the coefficient of x in equation 1 (which is 2) to equation 2. Also, multiply the coefficient of x in equation 2 (which 6) to equation 1. By doing this we are going to eliminate x

    2x - y = 11. * 6 Equation 1

    6x - 3y = 15. * 2 Equation 2

    12x-6y=66. Equation 3

    12x-6y=30. Equation 4

    Subtract equation 4 from 3

    Then (12x-6y) - (12x-6y) = 66 - 30

    0=36

    Which is not possible

    Then the system has no solution, it has no solution at all. Because 0 is not equal to 36. If has been 0 equals to 0, then we may many solutions for simultaneous equation.
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