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

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