Answer:
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Step-by-step explanation:
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So, 1/3 of something is 21.
1/3 of x is not the full x: we know that the x is 21 and even more. So, it must be bigger than 21, since it has 21 and something else (and since 21 is not negative): the solution MUST be greater than 21.
Answer:
(2, 6) and (-3, -4)
I think, sorry if wrong
Step-by-step explanation: