Menyelesaikan 10\times9+63\div7-20 | 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

$$10 \times 9+63 \div 7-20$$