Resolver 1/2 - (2 - 1) ^ 2 * 2/3 - (2 - 1) | 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

$$\frac{1}{2}-(2-1)^{2}\frac{2}{3}-(2-1)$$