(1) Answers

n=7/9 9n=7 ---------- 10n-n=9n 10n-n=7 10n=7+n 10n=7+0.7... 10n=7.7... n=0.777777...

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(1) Answers

n=7/9 9n=7 ---------- 10n-n=9n 10n-n=7 10n=7+n 10n=7+0.7... 10n=7.7... n=0.777777...

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