What is the solutions of the following system of equations. y = -2x + 2 y = x – 1

Question

What is the solutions of the following system of equations.

y = -2x + 2

y = x – 1

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Helga 1 month 2021-09-05T07:36:47+00:00 1 Answers 0 views 0

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    2021-09-05T07:38:34+00:00

    Answer:

    x = 1, y = 0

    Step-by-step explanation:

    Given the 2 equations

    y = – 2x + 2 → (1)

    y = x – 1 → (2)

    Substitute y = x – 1 into (1)

    x – 1 = – 2x + 2 ( add 2x to both sides )

    3x – 1 = 2 ( add 1 to both sides )

    3x = 3 ( divide both sides by 3 )

    x = 1

    Substitute x = 1 into either of the 2 equations for corresponding value of y

    Substituting into (2)

    y = 1 – 1 = 0

    Solution is (1, 0 )

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )