Example

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

Question

$$\frac{3x-7}{2}-\frac{2y-8}{3}=-1; \frac{5-x}{3}-\frac{3-2y}{7}=1$$

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