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31 October, 06:37

Solve using substitution.

x + 5y = - 19

x - 5y = 1

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Answers (1)
  1. 31 October, 09:29
    0
    (-9,-2)

    x = - 9

    y = - 2

    Step-by-step explanation:

    x+5y=-19

    x-5y=1

    solve the equation

    x+5y=-19

    x=1+5y

    substitute the value of x into an equation

    1+5y+5y=-19

    add 5y to 5y

    1+10y=-19

    subtract 1 to - 19

    10y=-20

    divide both sides by 10

    y = - 2

    substitute the value of y into an equation

    x=1+5• (-2)

    multiply 5 to - 2

    1+-10

    add 1 to - 10 but since 10 is a negative the equation is subtraction.

    x = - 9

    (-9,-2)
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