-0.25/(-3/7)x(3/7)x(-1-1/5)
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-0.25/(-3/7)x(3/7)x(-1-1/5)
-0.25/(-3/7)x(3/7)x(-1-1/5)
-0.25/(-3/7)x(3/7)x(-1-1/5)
-0.25/(-3/7)x(3/7)x(-1-1/5)
=-1/4x(-7/3)x(3/7)x(-6/5)
=-1/4x(-1)x(-6/5)
=-3/10
解九宫格题目(X为未知数)9 X 2 X 7 X 8 X XX X 4 X X 9 X 6 X1 3 X 5 X X X X 24 X X 8 5 X X 1 XX 8 9 4 X 1 6 7 XX 1 X X 3 6 X X 88 X X X X 2 X 3 6X 5 X 6 X X 9 X XX X 7 X 4 X 2 X 1
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