解方程:2×1000X 2.5×1000(20-X)=450002×1000X+ 2.5×1000(20-X)=45000

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解方程:2×1000X 2.5×1000(20-X)=450002×1000X+ 2.5×1000(20-X)=45000
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解方程:2×1000X 2.5×1000(20-X)=450002×1000X+ 2.5×1000(20-X)=45000
解方程:2×1000X 2.5×1000(20-X)=45000
2×1000X+ 2.5×1000(20-X)=45000

解方程:2×1000X 2.5×1000(20-X)=450002×1000X+ 2.5×1000(20-X)=45000
2x1000x2.5x1000(20-x)=45000
100000000-20x =45000
20x =99955000
x =4997750