(x+40%x)乘以80%=224
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(x+40%x)乘以80%=224(x+40%x)乘以80%=224(x+40%x)乘以80%=224原式=0.8x+0.32x=2241.12x=224x=224/1.12x=200
(x+40%x)乘以80%=224
(x+40%x)乘以80%=224
(x+40%x)乘以80%=224
原式=0.8x+0.32x=224
1.12x=224
x=224/1.12
x=200
(x+40%x)乘以80%=224
(1+40%)乘以X乘以80%—X=15
(1+40%)乘以X乘以80%—X=15 (1+40%)乘以X乘以80%—X=15
X乘以X等于40 ---------------------X=?
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