Example

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

Question

$$\frac{-1}{2}x(\frac{-2}{3}+\frac{3}{4})=\frac{-1}{2}x\frac{-2}{3}+\frac{-3}{2}\times\frac{3}{4}$$

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