18-[8-{5-(4-2)}]
![18-[8-{5-(4-2)}] 18-[8-{5-(4-2)}]](https://tex.z-dn.net/?f=18-%5B8-%7B5-%284-2%29%7D%5D)
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Answer:
13
Step-by-step explanation:
=18-[8-{5-(4-2)}]
=18-[8-{5-2}]
=18-[8-3]
=18-5
=13
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