12-3[5+3{(7-9)-2}]
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Step-by-step explanation:
12-3[5+3{(7-9)-2}]
12-3[8{-2-2}]
12-3[8{-4}]
12-3(-32)
12+96
108
Answer:
= 12-3[5+3{(7-9)-2}]
= 12-3[5+3{-2-2}]
= 12-3[5+3×(-4)]
= 12-3[5-12]
= 12-3×(-7)
=12+21
= 33
hope this helps you