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14 September, 06:34

Solve the equation

- 9x - 2y=-12

2x+5y=-11

X=

Y=

+1
Answers (1)
  1. 14 September, 06:48
    0
    Answer:x=2, y=3

    Step-by-step explanation:

    solving this equation simultaneously

    -9x - 2y=-12 ... (1)

    2x + 5y=-11 ... (2)

    Using elimination method

    Multiply equation 2 by 2 and equation 1 by 5

    -45x - 10y = - 60 ... (3)

    4x + 10y=-22 ... (4)

    Subtracting equation 2 from 1

    -41x + 0=-82

    41x=82

    x=82/41

    X=2

    To find y put x in equation 1

    -9x - 2y = - 12

    -9 (2) - 2y=-12

    -18-2y=-12

    -2y=-12+18

    -2y=6

    Y = 6/2

    Y=3

    X=2, Y=3
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