3 | A | |
+ | 2 | 5 |
B | 2 |
4 | A | |
+ | 9 | 8 |
C | B | 3 |
1 | A | |
\[\times \] | A | |
9 | A |
A | B | |
+ | 3 | 7 |
6 | A |
A | B | |
\[\times \] | 3 | |
C | A | B |
A | B | |
\[\times \] | 5 | |
C | A | B |
A | B | |
\[\times \] | 6 | |
B | B | B |
A | 1 | |
+ | 1 | B |
B | 0 |
2 | A | B |
+ A | B | 1 |
B | 1 | 8 |
1 | 2 | A |
+ 6 | A | B |
A | 0 | 9 |
question_answer2) If \[21y5\] is a multiple of 9, where y is a digit, what is the value of y?
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