3-( 2-(5-3) -1)-2
1) 5-3 = 2
2) 2-2-1 = -1
3) 3-(-1)-2= 3+1-2 = 2
По-другому:
3-(2-(5-3)-1)-2 → 3-(2-2-1)-2 → 3-(-1)-2 → 3+1-2 = 2
ответ: 2
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3-( 2-(5-3) -1)-2
1) 5-3 = 2
2) 2-2-1 = -1
3) 3-(-1)-2= 3+1-2 = 2
По-другому:
3-(2-(5-3)-1)-2 → 3-(2-2-1)-2 → 3-(-1)-2 → 3+1-2 = 2
ответ: 2