化简 80%1.4%x+80%3.7%(200000-x)=5000

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化简 80%*1.4%x+80%*3.7%(200000-x)=5000
化简 80%*1.4%x+80%*3.7%(200000-x)=5000

化简 80%*1.4%x+80%*3.7%(200000-x)=5000
0.8*0.014X+0.8*0.037(200000-X)=5000
0.8*[0.014X+0.037(200000-X)]=5000
0.8*(0.014X+7400-0.037X)=5000
0.8*(-0.023X+7400)=5000
-0.0184X+5920=5000
-0.0184X=-920
X=50000

是求X？

化简 80%*1.4%x+80%*3.7%(200000-x)=5000 化简(80-x)*(60-x) 1.4x-120=x-80 X/100 + X/80 3x*x=1600+x*x-80x x(120+x)*80％=x-76 请问,(3)80+x>3x x 60%X + 80%X - 12 = X 125x(80+8)=( )x( )+( )x( ) 80%x+30-x=10%x 5*4x+x*x=80 536-120%x-x=x-80 80x-多少x等于40x? x-25=80%x,x=? x-0.2x=80 求x 80X-90X=6x+80X 解是几 x+60%x=80 x-60%X=80