25x=25x乘以10乘以0.9+5x 怎么解

25x=25x乘以10乘以0.9+5x 怎么解 25x＝25x乘以10乘以0.9+5x 怎么解 25乘以(20-x)=30乘以15 1.若2x+5y=4 求4^x乘以32^y2.已知5乘以25^x乘以125^x=5^21 求x^3 x乘以5乘以x等于多少 x乘以5加x乘以10等于多少 2x乘以x乘以x=24,求x! 解方程2乘以0.2x-3乘以0.3x+5乘以0.4x=0.3乘以5 小升初计算题计算：2.37除以4减1.37乘以25%=4%乘以25%+2/3乘以30%=解方程：x减15%x=2.043/5乘以4/3减10%x=05x%＋6x%=2.2（x+75%）乘以30=36 [5x+9x乘以(66-x)]乘以(1-18%)=1.75x+7.2乘以(66-x) 解方程：30乘以5+5X+5=（30乘以5+5X）乘以0.9 怎么解 解方程：根号15-根号5乘以X=2根号10-根号20乘以X 分式乘法!(5x+2)/(25-10x+x^2)乘以(x^2-25)/(25x^2-4)(2x-6)/（4-4x+x^2）乘以{(x-2)(x+3)}/(3-x) 解方程 24乘以5+5乘以（x-5）=（24乘以5 +5x）乘以0.9一步一步算清楚 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 5x乘以x+3X等于零 X乘以X等于40 ---------------------X=? 已知3乘以x的平方-x=1,求6乘以X的立方+7乘以x的平方-5乘以x+2007的值