1. X-7 = -12 2.-8 +x= 23 3. -5x = 15

Question

1. X-7 = -12
2.-8 +x= 23
3. -5x = 15

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bonexptip 7 months 2021-07-20T12:27:49+00:00 1 Answers 5 views 0

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    2021-07-20T12:29:25+00:00

    Answer:

    1. X-7 = -12          X-7+7=-12+7      X=-5

    2.-8 +x= 23         -8+8+x=23+8    x=31

    3. -5x = 15          5x/-5=15/-5        x=-3

    Step-by-step explanation:

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