Answer :

hnori22003

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A number :

[tex]x[/tex]

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3/5 of it :

[tex] \frac{3}{5} x \\ [/tex]

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2/7 of it :

[tex] \frac{2}{7} x \\ [/tex]

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3/5 of a number exceeds its 2/7 by 44 thus :

[tex] \frac{3}{5} x - \frac{2}{7} x = 44 \\ [/tex]

(( Find the number )) ---¢ x asked

So we need to solve the above equation for x.

[tex] \frac{3}{5} x - \frac{2}{7} x = 44 \\ [/tex]

Multiply sides by 35

[tex](35) \times ( \frac{3}{5} x) - (35) \times ( \frac{2}{7} x) = 35 \times 44 \\ [/tex]

[tex](7 \times 3x) - (5 \times 2x) = 4 \times 35 \times 11 \\ [/tex]

[tex]21x - 10x = 140 \times 11[/tex]

[tex]11x = 11 \times 140[/tex]

Divide sides by 11

[tex] \frac{11}{11} x = \frac{11 \times 140}{11} \\ [/tex]

[tex]x = 140[/tex]

Done...

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