Answer
Value of \[x\]is \[d\]such that \[x\ \vartriangle \ \left( e\ \square \ c \right)=d\].
Work Step by Step
Find\[x\ \vartriangle \ \left( e\ \square \ c \right)=d\]as,
Value of \[\left( e\ \square \ c \right)=b\] from first table, thus
\[x\ \vartriangle \ b=d\]
Now, find column under \[b\]of the second table, and then find\[d\]under that column to get the corresponding row to get the value of \[x\].
Thus, value of \[x\]is \[d\].
Hence, the value of \[x\]is \[d\]such that \[x\ \vartriangle \ \left( e\ \square \ c \right)=d\].
