Example

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

Question

$$22-56$$

Answer

-34

Solution


Use this rule: \(a-b=-(b-a)\).
\[-(56-22)\]
Use the algorithm method.
56
-22
34
After simplification, we have:
\[-(56-22)=-34\]
Therefore, \(22-56=-34\).
\[-34\]
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