Y-X=45 (85%Y-X)×8=(Y-35-X)×12
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Y-X=45 (85%Y-X)×8=(Y-35-X)×12
Y-X=45
(85%Y-X)×8=(Y-35-X)×12
Y-X=45
(85%Y-X)×8=(Y-35-X)×12
![Y-X=45 (85%Y-X)×8=(Y-35-X)×12](/uploads/image/z/5643457-25-7.jpg?t=Y-X%3D45+%2885%25Y-X%29%C3%978%3D%28Y-35-X%29%C3%9712)
Y-X=45 ①
(85%Y-X)×8=(Y-35-X)×12
简化得:
(0.85y-x)8=(-35+45)*12
0.85y-x=15 ②
①-②得:
0.15y=30
∴y=200
x=155
(85%Y-X)×8=(Y-35-X)×12
简化得:
(0.85y-x)8=(-35+45)*12
0.85y-x=15 ②
①-②得:
0.15y=30
∴y=200
x=155
Y-X=45 (85%Y-X)×8=(Y-35-X)×12
Y-X=45 (80%Y-X)×8=(Y-35-X)×12
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