Answer:
a = 8
Explanation:
Given: 1a2a + a31 = 2659
We need to find the value of a. Let's write in vertical form.
1a2a
a31 (+)
_____
2659
_____
When we add the unit place, we get 9. The numbers in the place "a" and "1" respectively.
So, a + 1 = 9
Solving the above equation, we get
a = 9 -1
a = 8
Therefore, the value of a = 8
Let's check it out by replacing a with 8
1828
831 (+)
____
2659
____
Therefore, a = 8