X=几?5X-4=40 5(X-4)=40 (48-3X)÷3=0 X+5X-7X=几?5X-4=40 5(X-4)=40 (48-3X)÷3=0X+5X-7=11
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![X=几?5X-4=40 5(X-4)=40 (48-3X)÷3=0 X+5X-7X=几?5X-4=40 5(X-4)=40 (48-3X)÷3=0X+5X-7=11](/uploads/image/z/266719-31-9.jpg?t=X%3D%E5%87%A0%3F5X-4%3D40+5%28X-4%29%3D40+%2848-3X%29%C3%B73%3D0+X%2B5X-7X%3D%E5%87%A0%3F5X-4%3D40+5%28X-4%29%3D40+%2848-3X%29%C3%B73%3D0X%2B5X-7%3D11)
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X=几?5X-4=40 5(X-4)=40 (48-3X)÷3=0 X+5X-7X=几?5X-4=40 5(X-4)=40 (48-3X)÷3=0X+5X-7=11
X=几?5X-4=40 5(X-4)=40 (48-3X)÷3=0 X+5X-7
X=几?
5X-4=40 5(X-4)=40 (48-3X)÷3=0
X+5X-7=11
X=几?5X-4=40 5(X-4)=40 (48-3X)÷3=0 X+5X-7X=几?5X-4=40 5(X-4)=40 (48-3X)÷3=0X+5X-7=11
1:8.8 2 8.8 3 16
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