हल करना - 7/5 * (- 15/21 - 35/49) | 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

$$\frac{-7}{5}\times(\frac{-15}{21}-\frac{35}{49})$$