Answer :

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[tex] \frac{2x}{5y} = 6[/tex]

[tex]2x = 6 * 5y[/tex]

[tex]2x = 30y[/tex]

[tex] \frac{2x}{30} = y[/tex]

[tex]y = \frac{x}{15} [/tex]

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[tex] \frac{11}{4} - a = 3[/tex]

[tex]-a = 3 - \frac{11}{4} [/tex]

[tex]a = \frac{11}{4} - 3[/tex]

[tex]a = \frac{11}{4} - \frac{12}{4} [/tex]

[tex]a = - \frac{1}{4} [/tex]

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