Example

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

Question

$$315-2414$$

Answer

-2099

Solution


Use this rule: \(a-b=-(b-a)\).
\[-(2414-315)\]
Use the algorithm method.
31014
2414
-315
2099
After simplification, we have:
\[-(2414-315)=-2099\]
Therefore, \(315-2414=-2099\).
\[-2099\]
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