作业帮0.5×6÷5x等于0.03
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/14 11:31:49
2/5×1/2-x/10=1/6(1-x)/10=1/61-x=10/6x=1-5/3=-2/37x/6=42x=42*6/7=363.6×0.5=0.75x×0.81.8=0.6xx=3
x的倒数等于他本身∴x=1或-1=(x-3)(x-2)/(x+3)×（x+3)(x-2)/(x-3)=(x-2)²当x=1时原式=1当x=-1时原式=9
x+y=-5【1】xy=6【2】由【1】得x=-5-y【3】把【3】代入【2】得（-5-y）y=6-5y-y²-6=05y+y²+6=0y=-2或-3得x=-3或-2x²
x：y=5：6
X/6-X/10=55X/30-3X/30=5(5X-3X)/30=5X/15=5X=75
6/x=x-56＝x(x-5)x^2-5-6=0(x-6)(x+1)=0x1=6x2=-1再问：^是什么再答：^2是平方
5x-5=6x5x-6x-5=6x-6x-x-5=0-x=5x=-5
x-80%x=720.2x=72x=72÷0.2x=3605/6x+70=1355/6x=135-705/6x=65x=65÷5/6x=65×6/5x=78
(x-5)/6=1.6x-5=9.6x=14.6
(3x-2)÷5-(5x-6)÷3=1-x两边同乘以153（3x-2)-5(5x-6)=15(1-x)9x-6-25x+30=15-15x-16x+24=15-15xx=9
30x²
0.5*6/5x=0.030.6/x=0.03x=0.6/0.03x=20
6x+3x-5x=(6+3-5)x=4x
x÷2+x÷5+x÷6=1066可以写作x/2+x/5+x/6=1066则方程两边同时乘以30得,15x+6x+5x=31980,26x=31980,x=1230再问：不明白再问：为什么两边同时乘以3
解x=96x+5x-1=11x-1=11×9-1=99-1=98
6x=6x=1
5x+6-2+3x=28x=2-6+28x=-2x=-2.5
5x-10%x=9.8(5-0.1)x=9.8x=9.8/4.9x=224-10%x=610%x=18x=180
x÷0.5=6x=6x0.5=3