11 12 X-120%X=6.5
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X=0或者+∞
x+4x=x+120x+4x-x=1204x=120x=30(等号最好对齐写)
12分之11x—120%x=6.5(12分之11-120%)x=6.5(12分之11-5分之6)x=6.5-60分之17x=6.5x=6.5÷(-60分之17)x=-17分之390再问:这是怎么算的我
6.5x-x=10.55.5x=10.5x=1.90909...
1.7x-120%x=6.51.7x-1.2x=6.50.5x=6.5x=13
方程两边同时乘以0.39得x=0.39(x-6.5)x=0.39x-2.5350.61x=-2.535x≈-4.1557
(X+X)+(X-X)+(X*X)+(X/X)=1002X+0+X*X+1=1002X+X*X=99X(X+2)=99X=9再问:请问X(X+2)=99解为什么就等于9了呢没看懂再答:换成算术法你就明
3.6x-x=6.52.6x=6.5x=26分之65施主,我看你骨骼清奇,器宇轩昂,且有慧根,乃是万中无一的武林奇才.潜心修习,将来必成大器,鄙人有个小小的考验请点击在下答案旁的"选为满意答案"
11/12X-120%X=6.511x/12-120x/100=13/211x/12-6x/5=13/2(通分,两边×60)55x-72x=390-17x=390x=-390/17或x=-22又16/
2.2x=44,x=200.3x=54+18=72,x=240
2x²+20x=120x²+10x=60x²+10x+25=60+25(x+5)²=85x+5=±√85x=-5-√85,x=-5+√85
(X*X-X)/X=120X²=121XX=121或X=0(舍去)所以X为121
120%x-11/12x=6.56/5x-11/12x=6.572x-55x=6.5*5*1217x=390x=390/17
需要过程?再问:嗯嗯*^O^*再答:数有点大稍等再问:好的好的^W^再答:问题没错?再问:没错再问:算不出来么?再答:整理出来4x^2+475x+380=0再问:那估计是数抄错了还是要谢谢你^W^
x/120%=100x/120=(10/12)x(11/12)x-x/120%=(1/12)x=6.5x=6.5×12=78
没法解,化简得:x[2x^2/(x^2-y^2)]=120/288若x=ty;则有t^2y/(t-1)=60/288.无穷解若方程为:X/(Y+X)+X/(X-Y)=120/288x^2/(x^2-y
X=65/11约等于5.91
#includesintjiesheng(intn)//用于计算阶乘如:3!{if(n=1)rerunn;returnn*hh(n-1)}doubledigui(intn,intx)//用以计算y=x
2x等于x+15x等于15
7x²*2=120x²=60/7x=-2√105/7,x=2√105/7