6x+4(2x-1)+3x4(45-3x4)=171
1个回答
6x+8x-4+12*33=171
14x-4+396=171
14x+392=171
14x=-221
x=-221/14
相关问题
解方程6x+4(2x-1)+33(45-3x)=171急急急!
6x+4*2x-1+[44-(x+2x-1)*3]=171,求x.
6(x+1)=4(x+4) 6(x-1)=4(3-2x) 5-3x=8-4x 5-(x+3)=4-3x 1/2(x+6)
x1+5x2+2x3-4x4=3 -3x1-2x2+3x3+4x4=-6 -x1+3x2-x3-4x4=-2 -2x1+
3-2(x-1)=4(-2x+3),2-(3x-4)=-4x,2(x-2)-6(x-1)=3(1-x)
4/5x+2=-1/3x-1.-5/6x+2=-1/3x-1.6(x-4)=-3(4+2x).
①7x=6x﹢4②2x+3=11‐6x③3.4x‐9.8=1.4x﹢9④4x‐3﹢3x=6x‐2
解线性方程组x1+x2+3x3+4x4=5 2x1+4x2+4x3+6x4=8 -x1-2x2-x3-2x4=-3
-5x+4=3x-4 -2x=-5/6x+2 3x-4/1=-4/x+1