2x-x-5x+x=2/3+3/6+1/2-2
-3x=-1/3
x=1/9
x-1/5=2-x/3
x+x/3=2+1/5
4x/3=11/5
x=33/20
1-2x/3=3x-1/7-3
-2x/3-3x=-1/7-3 -1
-11x/3=-29/7
x=87/77
1/3(2x-1)=1/6x+1
2x/3-1/3=1/6x+1
2x/3-1/6x=1+1/3
x/2=4/3
x=8/3本回答被提问者采纳
...1-2x\/3=3x-1\/7-3 1\/3(2x-1)=1\/6x+1的解,要过程。
2x-1\/2-x+2=5x+2\/3-x+3\/6 2x-x-5x+x=2\/3+3\/6+1\/2-2 -3x=-1\/3 x=1\/9 x-1\/5=2-x\/3 x+x\/3=2+1\/5 4x\/3=11\/5 x=33\/20 1-2x\/3=3x-1\/7-3 -2x\/3-3x=-1\/7-3 -1 -11x\/3=-29\/7 x=87\/77 1\/3(2x-1)=1\/6x+1 2x\/3-1\/3=1\/6x+1 2x\/3-1\/6...
(2x-1)÷2-x+2=(5x+2)÷3-(x+3)÷6解方程
(2x-1)÷2-x+2=(5x+2)÷3-(x+3)÷6 两边同乘以6 3（2x-1)-6x+12=2(5x+2)-(x+3)6x-3-6x+12=10x+4-x-3 9=9x+1 9x=9-1 9x=8 x=8\/9
...2X-X=1\/2-1+1\/3;1\/2(X-1)=2-1\/5(X+2);X+2\/5=X\/4
2X-X=1\/2-1+1\/3 X=-1\/6 1\/2(X-1)=2-1\/5(X+2)1\/2X-1\/2=2-1\/5X-2\/5 1\/2X+1\/5X=2-2\/5+1\/2 7X\/10=21\/10 X=3 X+2\/5=X\/4 X-X\/4=-2\/5 3X\/4=-2\/5 X=-8\/15
解方程:(1) 1\/2x-(2x+1)\/3=1 (2) 2x-1\/2[x-1\/3(2x-7)]=1\/6(2x-7)
1、去分母得：3X-2(2X+1)=6，3X-4X-2=6 -X=8 X=-8，2、去分母得：12X-3［X-1\/3(2X-7)=2X-7］12X-3X+2X-7=2X-7 9X=0 X=0 3、2.4-x\/0.5=4-x\/2.5 化小数为分数：12\/5-2X=4-2X\/5 去分母：12-10X=20-2X -8X=8 X=-1 ...
(1)2x-1分之2=3分之2(2)x-2分之x+5=-2(3)3x+2分之4-x=3(4)3x-2分之...
两边同乘以x-2得：x+5=-2（x-2）x+5=-2x+4 移项得：x+2x=4-5 3x=-1 x=-1\/3 （3）3x+2分之4-x=3 (4-x)\/(3x+2)=3 两边同乘以3x+2得：4-x=3(3x+2)4-x=9x+6 移项得：4-6=9x+x -2=10x x=-1\/5 （4）3x-2分之5=x+2分之1 5\/(3x-2)=1\/(x+2)两边...
2分之1减2x 减3分之x加1 等于 6分之 5x减1 要算式 在线等
1-2x x+1 5x-1 --- - --- = --- 2 3 6 等式两边同乘6 3(1-2x)-2(x+1)=5x-1 3-6x-2x-2=5x-1 12x=2 x=1\/6
2x-1\/3=x+1\/2+2
两边乘6 2(2x-1)=3(x+1)+12 4x-2=3x+3+12 4x-3x=3+12+2 x=17
解方程2x-1\/2[x-1\/2(x-1)]=2\/3(x-1)
解：2x-1\/2[x-1\/2(x-1)]=2\/3(x-1)2x-1\/2[x-1\/2x+1\/2)]=2\/3(x-1)2x-1\/2(1\/2x+1\/2)=2\/3(x-1)2x-1\/4x-1\/4=2\/3(x-1)两边同时乘以12，得 24x-3x-3=8(x-1)21x-3=8x-8 21x-8x=-8+3 13x=-5 x=-5\/13 ...
解方程2x-1\/x-3=2x-1\/x+1
=0， ——》7x+6=0， ——》x=-6\/7。解方程:2x-1\/x-3=1+1\/x -3 解: 原方程应该是 2x-1\/(x-3)=1+1\/(x-3)吧 如果是则 方程两边通分 [2x(x-3)-1]\/(x-3)=(x-3+1)\/(x-3) 因为x-3≠0, 方程两边同时乘以x-3得 2x(x-3)-1=x-3+1 2x²-6x...
怎么算啊:2X-1\/2(X-1)=2\/3(X+4\/5)
两边乘6 12x-3x+3=4x+16\/5 12x-3x-4x=16\/5-3 5x=1\/5 x=1\/5÷5 x=1\/25
