Example

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

Question

$$2(7 \times \frac{ 6.5 }{ \frac{ 10 }{ } } + \frac{ 6.5 }{ 10 } \times 4+4 \times 7)$$

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