Example

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

Question

$$1 \frac{ 3 }{ 20 } , \frac{ 6 }{ 25, } \frac{ 15 }{ -4 }$$

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