Example

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

Question

$$\pi=\frac{2}{3}; 921\times3^{2}\times(3^{\frac{-1}{27})^{-2}-(27)^{h}}=\frac{1}{27}$$

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