The question as written (ABA + 8B = 211) is likely a typo and cannot be solved. Assuming a typo where the problem is `1BA + 8B = 211`. In the units column, A+B must end in 1. In the tens column, B+8 (+carry) must end in 1. If B=2, then 2+8+1(carry)=11. So B=2. Then A+2 must end in 1, so A=9. Check: 192+82 = 274. This fails. The question seems unsolvable. Based on the provided answer key, the intended question is different.