Can you find digits that make the equations true in the following alphametic puzzle (cryptarithm)?
$RE + MI = FA$ $DO + SI = MI$ $LA + SI = SOL$
- Zero may be a possible variable
- No one digit may be represented by more than one variable
Can you find digits that make the equations true in the following alphametic puzzle (cryptarithm)?
$RE + MI = FA$ $DO + SI = MI$ $LA + SI = SOL$
From the second equation you have $O=0$. Also, since $SOL$ is the sum of two digit numbers, it follows that $S=1$.
Thus, so far we have
$RE+MI=FA$ $D0+1I=MI$ $LA+1I=10L$
From the last equation we get $L=8$ or $L=9$. Also, we know $D+1=M$ from the second.
Now, if each letter is a different digit, combining $E+I=A$ or $E+I=1A$ from the first equation with $A+I=L$ and $L \in \{ 8, 9 \}$, and studying the four possible cases should lead to the solution.