solve each system by substitution y=-2x + 7 y = 3x – 13

Question

solve each system by substitution
y=-2x + 7
y = 3x – 13

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Yến Oanh 3 years 2021-09-05T00:21:47+00:00 1 Answers 2 views 0

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    2021-09-05T00:22:48+00:00

    Answer:

    y = -1, x =4

    Step-by-step explanation:

    3x-`13=-2x+7

    x = 4

    y=3(4)-13

    y = -1

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