Check whether (0, -2) is solution of the equation x – 2y = 4 or not

Question

Check whether (0, -2) is solution of the equation x – 2y = 4 or not

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Xavia 5 years 2021-08-15T18:26:25+00:00 1 Answers 16 views 0

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  1. Orla
    0
    2021-08-15T18:27:43+00:00
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    Answer:

    Step-by-step explanation:

    Plugin x = 0 & y = -2 in the LHS of the equation. After substituting, if you get the RHS, then this point is the solution of the equation.

    x – 2y = 0 – 2*(-2)

             = 0 + 4

             = 4  = RHS.

    (0,-2) is solution of the equation.

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