2/3x-1=1/2x+3 5(x-5)+2(x-12)=0 4x=3=2(x-1)+1 y+1/2=2-y/8=1

来源：学生作业帮编辑：作业帮分类：数学作业时间：2024/05/18 12:52:26

2/3x-1=1/2x+3 5(x-5)+2(x-12)=0 4x=3=2(x-1)+1 y+1/2=2-y/8=1
2/7(3x+7)=2-3/2x 2x+5/6-3x-2/8=1
x取何值时,代数式4x-5与3x-6的值互为相反数?
k取何值时,代数式k+1/3的值比3k+1/2的值小1?
要全说完，我看了后，可以就的分 4x+3=2(x-1)+1

2/3x-1=1/2x+3 2/3x-1/2x=3+1 1/6x=4 x=24
5(x-5)+2(x-12)=0 5x-25+2x-24=0 7x-49=0 x=7
4x=3=2(x-1)+1
y+1/2=2-y/8=1
2/7(3x+7)=2-3/2x 6/7x+2=2-3/2x 6/7x+3/2x=2+2 x=56/33
2x+5/6-3x-2/8=1 -x=1-5/6+2/8 x=5/12
x取何值时,代数式4x-5与3x-6的值互为相反数?
4x-5=-(3x-6) 4x+3x=6+5 x=11/7
k取何值时,代数式k+1/3的值比3k+1/2的值小1?
3k+1/2-(k+1/3)=1 k=5/12

若2x-3y+4=0则x（x*x-1)+x(5-x*x)-6y+7 先化简再求值(x-y)(x+y)-(x-2y) 的完全平方+x(3x-5y)-(x-y)(x-2y),其中x=1/2 y y=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10)的导数在x=1 已知x=1/3,y=-1/2,求代数式x-(x+y)+(x+2y)-(x+3y)+(x+4y)-(x+5y)+...-( 函数,y=3x/(x^2+x+1) ,x 函数y=3x/(x^2+x+1) （x 化简[(3x+4y)^2-(2x+y)(2x-y)+(-x+y)(5x-y)]除以-2y,其中x=-1,y=1 {3(x+y)-4(x-y)=4 {x+y/2 + x-y/6=1 求函数y=\x-1\+\x-2\+\x-3\+\x-4\+\x-5\+\x-6\+.+\x-10\的最小值 9y=3x-(x-1),4(x+y)-(2x+4)=8y （2x+y-1)(2x-y+1)-(3x+y)(3x-y),其中x=5分之1, y=(x^2+x)/(x+1)