(1/2-5/9+5/6)x(-36)
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(1/2-5/9+5/6)x(-36)(1/2-5/9+5/6)x(-36)(1/2-5/9+5/6)x(-36)稍等-28原题=1/2×(-36)-5/9×(-36)+5/6×(-36)=-18+2
(1/2-5/9+5/6)x(-36)
(1/2-5/9+5/6)x(-36)
(1/2-5/9+5/6)x(-36)
稍等
-28
原题=1/2×(-36)-5/9×(-36)+5/6×(-36)=-18+20-30=-28
=1/2*(-36)-5/9*(-36)+5/6*(-36)
=-18+20-30
=-28
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