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40+[26+2•(40:2-5•4+8-6)]:10-3

Răspuns :

40+/26+2×(40÷2-20+8-6)/÷10-3=
40+/26+2×(20-20+8-6)/÷10-3=
40+(26+2×2)÷10-3=
40+30÷10-3=
40+3-3=43-3=40