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Question Number 133009 by shaker last updated on 18/Feb/21

Commented by liberty last updated on 18/Feb/21

? = 1

$$?\:=\:\mathrm{1} \\ $$

Answered by Rasheed.Sindhi last updated on 18/Feb/21

?=0 or 1 In case ?=0 7+0=7 (The number in opposite position) 8+0=8 (The number in opposite position) 9+0=9 (The number in opposite position) In case ?=1 7×1=7 (The number in opposite position) 8×1=8 (The number in opposite position) 9×1=9 (The number in opposite position)

$$?=\mathrm{0}\:{or}\:\mathrm{1} \\ $$$${In}\:{case}\:\:?=\mathrm{0} \\ $$$$\mathrm{7}+\mathrm{0}=\mathrm{7}\:\left({The}\:{number}\:{in}\:{opposite}\:{position}\right) \\ $$$$\mathrm{8}+\mathrm{0}=\mathrm{8}\:\left({The}\:{number}\:{in}\:{opposite}\:{position}\right) \\ $$$$\mathrm{9}+\mathrm{0}=\mathrm{9}\:\left({The}\:{number}\:{in}\:{opposite}\:{position}\right) \\ $$$${In}\:{case}\:\:?=\mathrm{1} \\ $$$$\mathrm{7}×\mathrm{1}=\mathrm{7}\:\left({The}\:{number}\:{in}\:{opposite}\:{position}\right) \\ $$$$\mathrm{8}×\mathrm{1}=\mathrm{8}\:\left({The}\:{number}\:{in}\:{opposite}\:{position}\right) \\ $$$$\mathrm{9}×\mathrm{1}=\mathrm{9}\:\left({The}\:{number}\:{in}\:{opposite}\:{position}\right) \\ $$

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