(x+40%x)乘以80%=224
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(x+40%x)乘以80%=224
(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
X乘以X等于40 ---------------------X=?
(2x²)²乘以x³+(x²)³乘以x=
2x乘以x乘以x=24,求x!
x乘以Y=x乘以(1-10%)乘以Y+x乘以(1-10%)乘以2 等于多少啊
30乘以3X乘以2+2(20-6X)乘以2X=4份之一乘以20乘以30
30乘以3X乘以2+2(20-6X)乘以2X=4份之一乘以20乘以30
4x的平方=10乘以8乘以(1-百分之80)解方程
五分之一乘以x-2=80%
2乘以(X+12.5)=34
x乘以x+1乘以x+2乘以x+3=3024怎么解?
(60-2x)(40-x)=60乘以40/2
40x+(2x+0.11)乘以40=258.8
3乘以x的平方-80x=400
2x+40-20=(x-20)乘以4
解方程:6x=9乘以(5-x)