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18 December, 05:00

Solve this system algebraically.

9x + 2y = 5

y - 2x + 3 = 0

{ (11/13, - 17/13) }

{ (-11/13, - 17/13) }

{ (-11/13, 17/13) }

{ (11/13, 17/13) }

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Answers (1)
  1. 18 December, 05:14
    0
    From the second equation, express y in terms of x. The expression is,

    y = 2x - 3

    Substitute this expression for y in the y of the first equation,

    9x + 2 (2x - 3) = 5

    The value of x from the equation is 11/13. The value of y is therefore,

    y = 2 (11/13) - 3 = - 17/13

    The solution is (11/13, - 17/13).
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Home » Mathematics » Solve this system algebraically. 9x + 2y = 5 y - 2x + 3 = 0 { (11/13, - 17/13) } { (-11/13, - 17/13) } { (-11/13, 17/13) } { (11/13, 17/13) }
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