In how many ways could the blanks below (marked with []) be filled if all the coefficients must be positive integers? []a + []b + []a = 10a + 7b

Virendra Jadeja asked Apr 19, 2022

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Virendra Jadeja asked Apr 19, 2022

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21 votes

5 times.

1a + 7b + 9a = 10a + 7b

2a + 7b + 8a = 10a + 7b

3a + 7b + 7a = 10a + 7b

4a + 7b + 6a = 10a + 7b

5a + 7b + 5a = 10a + 7b

Qerub answered Apr 26, 2022

by Qerub

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