Example

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

Question

$$\quad \frac { - 5 } { 11 } , \frac { - 5 } { 13 } , \frac { - 5 } { 7 } n$$

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