Example

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

Question

$$\begin{aligned}5&\\ \underline{-59}&\end{aligned}$$

Answer

-54

Solution


Use this rule: \(a-b=-(b-a)\).
\[-(59-5)\]
Use the algorithm method.
59
-5
54
After simplification, we have:
\[-(59-5)=-54\]
Therefore, \(5-59=-54\).
\[-54\]
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