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30 July, 20:28

Solve the system of equations.

0.8x + 0.1y = - 2

-0.17x + y = - 3.66

A (4, 2)

B (2, 1)

C (-2,-4)

D (-10, 12)

E (-12, 12)

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Answers (1)
  1. 31 July, 00:26
    0
    A).8x +.1y = -2

    B) -.17x + y = - 3.66

    We multiply A) by - 10

    A) - 8x - y = 20 then add it to equation B)

    B) -.17x + y = - 3.66

    -8.17x = 16.34

    x = - 2

    -1.6 +.1y = - 2

    .1y = -.4

    y = - 4

    Answer is C)
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