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24 March, 14:17

I honestly have no idea how to solve this question

8c=5c+21

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Answers (2)
  1. 24 March, 14:54
    0
    Remember this rule: Whenever you try to isolate the variable do the same operation to both sides

    Using the rule above subtract 5c from both sides getting 3c = 21

    Divide by 3 to both sides

    Now you have c = 7

    Thats you answer, if you have anymore questions just PM me
  2. 24 March, 15:17
    0
    Well, subtract 5c from both sides, so cross out 5c and do 8c-5c which is 3c. S 3c=21. 21 divided by 3 is 7. So c is. 7.
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