(60-2x)(40-x)=60乘以40/2
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(60-2x)(40-x)=60乘以40/2
(60-2x)(40-x)=60乘以40/2
(60-2x)(40-x)=60乘以40/2
(60-2x)(40-x)=60乘以40/2
X乘以X等于40 ---------------------X=?
(1+40%)乘以X乘以80%—X=15
(1+40%)乘以X乘以80%—X=15 (1+40%)乘以X乘以80%—X=15
40x+(2x+0.11)乘以40=258.8
2x乘以x乘以x=24,求x!
2x+40-20=(x-20)乘以4
60乘以(x减1)等于40乘以(x加1)怎么做
(60+x)乘以Y除以2=(100+x)乘以(400-Y)除以2 求X .Y
x乘以x+1乘以x+2乘以x+3=3024怎么解?
(x+40%x)乘以80%=224
60分之1乘以x=2000求x?
3乘以2分之x乘x等于60
3乘以2分之x乘x等于60
x-120=2乘以(x-200)
5x减12乘以60%=55x减12乘以60%=5
2/3乘以x乘以x等于60 解这个方程
解方程2乘以0.2x-3乘以0.3x+5乘以0.4x=0.3乘以5