方程x/4加5/12等于x/3
来源:学生作业帮助网 编辑:作业帮 时间:2024/05/12 14:07:35
题是这样的不,x/4+2x/3+x/2=51去分母得:3x+8x+6x=712x=612/17x=36
x/4+2/3=1+5/12两边同乘以12得:3x+8=12+53x+8=173x=9x=3再问:是1又12分之5再答:1又12分之5=1+5/12=17/12
(5x+2)/(x^2+x)=3/(x+1)(5x+2)/x=35x+2=3x2x+2=0x=-1不知原式写对了没有?
原方程为:x+x\2+1-x+x\4+3=x+x\6+5-x+x\8+7整理得:3x\4+4=7x\24+12两边同时乘以24,得18x+96=3x+288,x=12.8
5x+2=3x+45x-3x=22x=2x=1希望对你有所帮助~
x=3x+20=4x-25先解x=3x+20-20=3x-x-20=2xx=-10再解3x+20=4x-2520+25=4x-3xx=45即方程x=3x+20=4x-25无解.
负一再答:不对,是-5
无解再问:不可能再问:不然你帮我算算这道应用题再问:
2x²+12x²=35014x²=350x²=25x=-5,x=5
(4x/7)+(3x/5)=x-12020x+21x=35(x-120)41x=35x-420041x-35x+4200=06x+4200=0x+700=0x=-700
题目是3(x-y)-5x+12=2x-7x-4?再问:对再答:3x-5x-2x+7x=-4-12+3y3x=-16+3y再答:问题是x-7=?再问:恩再问:是x减y再答:3x=-16+3yx-y=-3
(2x-3/x)^2+5+12x=18/x;展开整理:4x^4+12x^3-7x^2-18x+9=0;(x-1)(4x^3+16x^2+9x-9)=0;(x-1)(x+3)(4x^2+4x-3)=0;
4.7-4等于0.7
4x+5x=459x=45x=45÷9x=5
再问:为什么等于0.3再问:?再答:2.1/7再问:嗯
4x+5x=270即9x=270x=270/9x=30
12-4x=3.64x=12-3.64x=8.4x=2.18:x=4.5:1.54.5x=12x=8/3x+3x=4.084x=4.08x=1.02102乘22减1428除14=2244-102=21
4x+5x=2709x=270x=3
3*x+6=83x=2x=2/3