Question

\(\frac{x}{9}\)=\(\frac{y}{21}\)biết    2x = 34

Answer 1

2x = 34 => x = 17

17/9 = y/ 21  => y = 17.21/9 =119/3

vậy: x=17

        y = 119/3

Answer 2

đề sai rùi!!!

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