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Working backwards, 9 x 6 = 54

then 54 + 12 = 66

Check: x = 66 so x - 12 = 54 and 54 / 6 = 9

Working backwards means start from end of question, and also reverse

what to do with the numbers. So divided become multiplied,

and minus becomes plus.

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∙ 11y ago

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