Equation:
y = 3 (7) x
For x = 1, y = 21... it is multiple of 3 and it has a factor of 7
for x = 2, y = 42...is it is multiple of 3 and it has a factor of 7
Answer: 21 and 42
Both can be divided by 3 and by 7
21/3 = 7
21/7 = 3
42/3 = 14
42/7 = 6
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