Example

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

Question

$$\frac{ 9 \times { 10 }^{ 3 } }{ 6 \times { 10 }^{ 3 } }$$

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