What strategies can be used to find solutions for equations such as 2,000 = 20x + 10y? HTML Editora

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What strategies can be used to find solutions for equations such as 2,000 = 20x + 10y?
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Acacia 3 months 2021-08-09T12:03:31+00:00 1 Answers 0 views 0

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    2021-08-09T12:04:58+00:00

    Answer:

    y=2(100-x)

    Step-by-step explanation:

    Given the expression, knowing also that the expression has two unknowns x and y

    2,000 = 20x + 10y

    step one:

    we can reduce all coefficients by dividing through  by a common multiple

    i.e dividing through by 10 we have

    2,000/10 = 20x/10 + 10y/10

    200=2x+y

    step two:

    we can either solve in terms of x or y

    let us solve in terms of y

    y=200-2x

    step three:

    we can factor 2 on the left-hand side we have

    y=2(100-x)

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