How to solve: 9+8{7x6-5[4+(3-2x1)]}

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9+8{7x6-5[4+(3-2x1)]}

2x1=2    3-2=1+4=5    5x5=25 7x6=42      

42-25=17        17x8=136      136+9=145

 

 

 

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my answer is 145.
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