Question

this question is for intelligent people in maths .

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correct answer will be marrk as braineast answer .

Answer 1

$1) \: \: 9 \frac{1}{4} = y - 1 \frac{1}{3} \\ \frac{37}{4} = y - \frac{4}{3} \\ y = \frac{37}{4} + \frac{4}{3} \\ y = \frac{111 + 16}{12} \\ y = \frac{127}{12} \\ y = 10 \frac{7}{12} \\ . \\ . \\ . \\ 2) \frac{5x}{3} + \frac{2}{5} = 1 \\ \frac{25x + 6}{15} = 1 \\ 25x + 6 = 15 \\ 25x = 15 - 6 \\ 25x = 9 \\ x = \frac{9}{25} \\ . \\ . \\ . \\ 3) \frac{x}{2} + \frac{x}{3} + \frac{x}{4} = 13 \\ \frac{6x + 4x + 3x}{12} = 13 \\ \frac{13x}{12} = 13 \\ x = 13 \times \frac{12}{13} \\ x = 12$
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