Substitution method. y=x – 5 y —3х – у = -3 ​

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Substitution method.
y=x – 5
y —3х – у = -3
​

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Nguyệt Ánh 3 years 2021-07-27T08:49:01+00:00 1 Answers 5 views 0

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  1. haidang
    0
    2021-07-27T08:50:46+00:00
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    Answer : ( 1, – 4 )

    Explanation : y=x – 5

    y —3х – у = -3

    Step 1 : Consider the first eqaution. Subtract X from both sides.

    y – x = -5

    Step 2 : Consider the second eqaution. Combine y and -y to get 0 .

    -3x = -3

    Step 3 : Divide both sides by -3

    x = -3 / -3

    Step 4 : Divide -3 by -3 to get 1

    x = 1

    Step 5 : Consider the first eqaution. Insert the known values of variables into the equation.

    y – 1 = -5

    Step 6 : Add one to both sides.

    y = -5 + 1

    Step 7 : Add negative 5 and one to get negative 4 .

    y = -4

    Therefore, the answer is ( 1, – 4 )

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