Resolver 1/9 - 2/27 + 3/81 | Equatix - Math Solver

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Example

3(r+2s)=2t-4

a⋅(b-2)=3b

3(r+2s)=2t-4

a⋅(b-2)=3b

Question

$$\frac{1}{9}-\frac{2}{27}+\frac{3}{81}$$