Example

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

Question

$$\begin{aligned}8.100&\\ -1.175&\end{aligned}$$

Answer

-0.175

Solution


Use this rule: \(a-b=-(b-a)\).
\[-(1.175-1)\]
Use the algorithm method.
1.175
-1.000
0.175
After simplification, we have:
\[-(1.175-1)=-0.175\]
Therefore, \(1-1.175=-0.175\).
\[-0.175\]
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