हल करना \ \ 70/7)-20\ -\ (56*3+5)-4\ *7 | 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

$$\{\{70\div7)-20\}-\{(56\times3+5)-4\}\times7$$