解方程(4* (2900-X) / 50 +8 )(X-2500)=5000
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解方程(4* (2900-X) / 50 +8 )(X-2500)=5000
解方程(4* (2900-X) / 50 +8 )(X-2500)=5000
解方程(4* (2900-X) / 50 +8 )(X-2500)=5000
(4* (2900-X) +400 )(X-2500)=250000
解方程(4* (2900-X) / 50 +8 )(X-2500)=5000
解方程(4* (2900-X) / 50 +8 )(X-2500)=5000
解方程(4* (2900-X) / 50 +8 )(X-2500)=5000
(4* (2900-X) +400 )(X-2500)=250000