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22 May, 13:15

If 7 times a certain number is added to 12, the result is 47

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Answers (2)
  1. 22 May, 13:31
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    5 beacause 5 times 7 is 35 and 35 plus 12 is 47.
  2. 22 May, 13:33
    0
    So first we want to assign the certain number a variable, let's say x.

    So we can write this out as an equation, or:

    7x + 12 = 47

    Now we can just solve this.

    7x + 12 - 12 = 47 - 12

    7x = 35

    /7 / 7

    x = 5

    So the certain number is 5.
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