$$\sum_{a=1}^{6}{23}$$
You asked:
Evaluate the expression: \(\sum_{a = 1}^{6} {23}\)
MathBot Answer:
\[\sum_{a=1}^{6} 23 = 138\]
$$\begin{aligned}\sum_{a=1}^{6} 23 &= 6 \cdot 23 \ \ \ \small{\color{grey}\text{by the identity} \sum_{n=1}^{m} C = mC}\\&= 138\end{aligned}$$