Frame an equation for the statement " 7 times a number is 21".

7 + x = 21

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7x = 21

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21x = 7

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x - 7 = 21

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Solution

The correct option is B 7x = 21
Let the number be 'x'.
7 times a number ⇒ 7x
7 times a number is 21 ⇒ 7x + 21

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