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Question Number 187713 by Noorzai last updated on 20/Feb/23

Commented by Noorzai last updated on 20/Feb/23

$$pleasesoluation$$

Answered by mahdipoor last updated on 20/Feb/23

$$\frac{1}{5}+\frac{1}{7}+\frac{1}{11}=\frac{1}{2}(\frac{2}{5}+\frac{2}{7}+\frac{2}{11})=$$$$\frac{1}{2}((1-\frac{3}{5})+(2-\frac{12}{7})+(2-\frac{20}{11}))=$$$$\frac{1}{2}(5-(\frac{3}{5}+\frac{12}{7}+\frac{20}{11}))=\frac{5-x}{2}$$

Commented by Noorzai last updated on 21/Feb/23

$$thanks$$

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