下列不等式中,于5分之3-2x小于等于-1
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![下列不等式中,于5分之3-2x小于等于-1](/uploads/image/f/1275556-4-6.jpg?t=%E4%B8%8B%E5%88%97%E4%B8%8D%E7%AD%89%E5%BC%8F%E4%B8%AD%2C%E4%BA%8E5%E5%88%86%E4%B9%8B3-2x%E5%B0%8F%E4%BA%8E%E7%AD%89%E4%BA%8E-1)
(x-2)/3-(3x+5)/2>=(2-x)/(x-3),通分得(-7x-19)/6>=(2-x)/(x-3),移项,通分,化简得(7x^2-8x-45)/(x-3)
5分之3x-7<2分之x-23X/5-7
(x-2)/3-(3x+5)/2>=(2-x)/(x-3),通分得(-7x-19)/6>=(2-x)/(x-3),移项,通分,化简得(7x^2-8x-45)/(x-3)
写纸上给你参考下吧.再答:
x+2>0,x+2>(3x+14)/55x+10>3x+14x>2x+2(3x+14)/5-5x-10>3x+14x
不等式2分之(1+x)≤(3分之2x-1)+1去分母,3﹙1+x﹚≤2﹙2x-1﹚+6去括号,3+3x≤4x-2+6合并同类项,x≥-1绝对值不大于4的整数解为-1,0,1,2,3,4.
去分母,得6x-5x+3<0移项,得6x-5x<-3合并同类项,得x<-3
1乘于2分之X+2乘于3分之X+3乘于4分之X+4乘于5分之X+5乘于6分之X+6乘于7分之X+.+2005乘于2006分之X=2005x(1-1/2+1/2-1/3+1/3-1/4+······+1
解;3x-(x+2)/4>(2x-5)/672x-6(x+2)>4(2x-5)72x-6x-12-8x+20>058x>-8x>-4/291-x/5≤x/1515-3x≤x-4x≤-15x≥15/4
3/8(x+1)-1>(x-5)/2-x3/8x+x/2>-5/2+1-3/87/8x>-3/2-3/8x>-15/7
再答:采纳,谢谢
由第一个式子可得x=1/2
B,所谓的一元一次不等式,要求一个变量,变量是一次方的.
阳光下的青睐:(x-5)/2+1>x-3(x-5)/2>x-4x-5>2(x-4)x-5>2x-8x-2x>-8+5-x>-3x
【1】x+3>5x>5-3,x>2【2】-2x/3
2-x>0(1)(2分之5x+1)+1》3分之2x-1(2)由(1)得x4x-615x+3+6>4x-611x>-15x>-15/11∴-15/11
两边乘以10得10x-5(3x-4)
1-(3-x)/(x+2)>0(x+2-3+x)/(x+2)>0即(2x-1)(x+2)>0x1/2
4x-21>5x-84-x>-63x<63