given 2x – 9y – 12 = 0, express 5x – 4y + 7 = 0 in terms of x only

Question

given 2x – 9y – 12 = 0, express 5x – 4y + 7 = 0 in terms of x only

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Hồng Cúc 2 weeks 2021-08-28T18:08:49+00:00 1 Answers 0 views 0

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    2021-08-28T18:10:38+00:00

    Answer:

    4 \frac{1}{9}x + 12\frac{1}{3} = 0

    Step-by-step explanation:

    Based on 2x – 9y – 12 = 0

    -9y = 12 – 2x

    9y = -12 + 2x

    y = -1\frac{1}{3} + \frac{2}{9} x

    Therefore…

    5x – 4y + 7 = 0

    5x – 4(-1\frac{1}{3} + \frac{2}{9} x) + 7 = 0

    5x + 5\frac{1}{3}  – \frac{8}{9} x + 7 = 0

    4 \frac{1}{9}x + 12\frac{1}{3} = 0

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