Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$80+[56+[7\times8+(13-2\times5)3]$$

Answer

80+[56+[7*8+3*3]

Solution


Simplify  \(2\times 5\)  to  \(10\).
Simplify  \(13-10\)  to  \(3\).
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