Solve x+2*X =X-1*2 A.-1,4 B 4 C-1 D No solution

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Solve x+2*X =X-1*2 A.-1,4 B 4 C-1 D No solution

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Helga 6 months 2021-08-31T06:00:05+00:00 1 Answers 2 views 0

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  1. minhkhue
    0
    2021-08-31T06:01:31+00:00
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    Step-by-step explanation:

    • \begin{gathered}x + 2 \times x = x – 1 \times 2 \\ x + 2x = x – 2 \\ 2 = x – 2x – x \\ 2 = x – x = 0 \\ = 2\end{gathered}
    • x+2×x=x−1×2
    • x+2x=x−2
    • 2=x−2x−x
    • 2=x−x=0
    • =2

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