x-(2/3x-1)-{40%(x-2/3x-1)+1}=4
1个回答
x-2/3x+1-2/15x+2/5-1=4
1/5x=4-2/5
x=18
相关问题
解方程:(1)4(x-1)=1-x;(2)[2x−1/3=1−2x−16];(3)[x−3/0.5−x+40.2=1.6
1x2=1/3(1x2x3=0x1x2 ) 2x3=1/3(2x3x4-1x2x3) 3x4=1/3(3x4x5- 2x
1x2=1|3(1x2x3-0x1x2) 2x3=1|3(2x3x4-1x2x3) 3x4=1|3(3x4x5-2x3x
X-(1/4+3)-1/3{(X-1/4X+3)}-2-1/2{X-(X-1/4X+3)-1/3(X+1/4X+3)-2
4道解方程7x-8=x+4 5x-1=-2+3(x-1)3/2 X-40=120-x 1+y/2-3=4
求非.X1+X2-X3+X4=1 ,X1-X2+X3-3X4=1,X1-X2-2X3+3X4=-1/2
1X2=1/3(1X2X3-0X1X2) 2X3=1/3(2X3X4-1X2X3) 发现1X2+2X3+3X4+、、、、
已知x1,x2,x3,…x40都是正整数,且x1+x2+x3+…+x40=58,x1^2+x2^2+x3^2+…+x40
x1+5x2+2x3-4x4=3 -3x1-2x2+3x3+4x4=-6 -x1+3x2-x3-4x4=-2 -2x1+
求方程组X1-3X2-2X3-X4=1 3X1-8X2-4X3-X4=0 -2X1+X2-4X3+2X4=1 -X1-2