Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$\begin{aligned}13&\\ \underline{+12}&\end{aligned}$$

Answer

25

Solution


Use the algorithm method.
13
+12
25
Therefore, \(13+12=25\).
\[25\]
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