0.36×5-2x=0.4
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0.36×5-2x=0.4
0.36×5-2x=0.4
0.36×5-2x=0.4
0.36×5-2x=0.4
1.8-2x=0.4
2x=1.4
x=0.7
0.36×5-2x=0.4
5x-x+7x-2x-0.09=0.36
解方程 x-0.4x=0.3 3x+x+1.8=5 2(x+1)=解方程x-0.4x=0.3 3x+x+1.8=5 2(x+1)=6
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填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x
5x+8=1.7x+6 3分之5x+0.4=2分之5x--0.3解方程 5x+8=1.7x+6 3分之5x+0.4=2分之5x--0.3
4x+5x=0.36
x(2x-1)=-3x(x+1)+5x²+3
x+2/x+1=5/x-1/x(x+1) 求化简!
混合运算6x+2x²-3x+x²+1其中x=-5
4x(5x-2)=3(5x-2)
3x(x+2)=5(x+2)
3x(x+2)=5(x+2)))
x+(1/2x-4)=32-(2x+5)
5x-2=3x+4 x等于什么?
使得|x-5|-|x-2|=7 x等于多少.
0.4x-1/0.5-5-x/2
0.4x-1/0.5-5-x/2