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ANTONII [103]
3 years ago
13

What does x stand for in the equation 3x = 21 ?

Mathematics
1 answer:
Aleonysh [2.5K]3 years ago
5 0

Answer:

7

Step-by-step explanation:

What times 3 = 21 . 7 x 3 = 21 therefore 7 is the x

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