Resolver ( e) (- a + 2b)/(a - b) - (b - 2a)/(a - b) | 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

$$\frac { - a + 2 b } { a - b } - \frac { b - 2 a } { a - b }$$