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10 May, 20:08

What is the solution of 7x+21=21

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Answers (2)
  1. 10 May, 21:30
    0
    Its 0 surely

    7x+21-21=21-21

    7x=0

    7x/7=0/7

    x=0
  2. 10 May, 22:18
    0
    First you subtract from both sides, which then will give you 7x = 0

    then you will need to divide, so x=0 will be your finale answer.
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