Example

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

Question

$$5-3\frac{1}{2}+5\frac{1}{4}\div3+16\frac{1}{4}\times\frac{2}{65})$$

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