Example

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

Question

$$\frac{1}{4}+[\frac{1}{2}}{5\frac{1}{8}-3\frac{2}{4}}$$

Answer

[12518-310

Solution


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