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What is the solution to × + 9 = 21A. × = 18B. × = 9C. × = 30D. × = 12
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What is the solution to × + 9 = 21A. × = 18B. × = 9C. × = 30D. × = 12

User Dfens
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1 Answer

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× + 9 = 21

subtract 9 from both sides

× + 9 - 9 = 21 - 9

× = 21 - 9

= 12

Option D

User Dgruending
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