हल करना ( iv) 11/15 from - prime 20 | 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

$$\frac { 11 } { 15 } \frac { - 1 } { 20 }$$