X-5:30=1.5:1.6X-5:30=1.5:1.6X不等于28.125?

30(x+5)=26x+10x(x+5) 30X-2X=84 5.8X-X=60 6.6X-5X=8 4X-X=24 1.5X-X=1要写过程求X值 X-5:30=1.5:1.6X-5:30=1.5:1.6X不等于28.125? 题是九个未知数的方程式.5X = 6X = 7X = 8X = 10X = 13X = 14X = 17X = 23X == (X + X + X + X + X + X + X + X + X + 30)≤280提示：题中 5 后面的X是未知数1.6 后面的X是未知数2.7后面的X是未知数3.依次类推.题中（X + x-2/5x-(x-2/5x)2/3-(2/5x-1/3x)=30求x X-X/12-X/7-X/8-X/4-X/20-X/5-30-120-300=50解方程 6X+1.5X=30 X除5=98 X-4/3X=5/3 6X+1.5X=30 X除5=98 X-4/3X=5/3 绝对采纳第一个. 解方程:x/4=30% 36/x=3/4 10/x=2.5/0.8 x/4=1.2/5 X/1.2=1.5/0.6 x/0.4=1.5/6 x/7=0.6/3.5 x/10=0.1/25-3x=8x+1 2(x-2)+2=x+1 3-x=2-5(x-1) 3x=5(32-x) 7(4-x)=9(x-4) 7x-8=2x+27 5x-18=3-2x (7x-4)+3(x-2)=2x+6 2(3x-4)+(4-x)=4x我是六年级的学生,我希望 30/x=30/(x-1.5)-x x-[2/5x+(x-2/5x-36)*2/3+36]=30 求x (16x-13)/(4x-3)-(20x-24)/(4x-5)=(32x-30)/(8x-7)-(40x-43)/(8x-9)求x 5x-4x=2*1.8,5x-2+3x=3.6,x+4x=20.3,8x+10-3x=30,10.5-0.5x+0.5=1,x+2x+5x=10,解方程,5x-4x=2*1.8,5x-2+3x=3.6,x+4x=20.3,8x+10-3x=30,10.5-0.5x+0.5=1,x+2x+5x=10,0.8x-0.2+1.2x=1.8,2.4x+0.6+1.6=8 x*x+2x+x*x+10x+x*x+25+2x+x*x+1+1+16+x*x+4x*x+9-12x+16x*x+4-16x=30x*x-7x-15 求x,可以只要答案.如图,全是正方形,一个边长为1,一个边长为4,求总面积,你也可以用你的方法.上面那个方程是我列的.5x*X+7X-72=0 1.5x＋5＝x＋30 x＝? 30x+5x=80x+5 15%x+30%x+5%x=6/5 (5x+?)平方=25x平方+30x+? 5/8X-30+3/10X+84=X