50%X-(1000-X)10%=1000×39.2%怎么解

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50%X-(1000-X)10%=1000×39.2%怎么解50%X-(1000-X)10%=1000×39.2%怎么解50%X-(1000-X)10%=1000×39.2%怎么解50%X-(1000

50%X-(1000-X)10%=1000×39.2%怎么解
50%X-(1000-X)10%=1000×39.2%怎么解

50%X-(1000-X)10%=1000×39.2%怎么解
50%X-(1000-X)10%=1000×39.2%
0.5X-0.1(1000-X)=392
0.5X-100+0.1X=392
0.5X+0.1X=392+100
0.6X=492
X=492÷0.6
X=820