x-1+x+2+x/3+4x=77
3个回答
应该有括号吧?如果没有括号的话:
x-1+x+2+x/3+4x=77
x+x+x/3+4x=77+1-2
6x+x/3=76
18x+x=228
19x=228
x=12
相关问题
4(0.77X-1.17-0.6)²=4(0.77X-1.77-3+0.7)(X-3)-2.5(X-3)&su
问几道解方程x/6-x=(x-3)/6x-1=1/2x+1/4x+1/8x+1/16x+1/32x77/x=2.5*77
-x^3-3x^2+9x-1=-77 求x的值
3/5X + 1/4X + 9/3X=77过程与答案
0.1X+X=77 求X 0.1X=77-X
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
求线性方程组x1-3x2-2x3-x4=1,3x1-8x2-4x3-x4,-2x1+x2-4x3+2x4=1,-x1-2
求非.X1+X2-X3+X4=1 ,X1-X2+X3-3X4=1,X1-X2-2X3+3X4=-1/2
(x1-x2+4x3-2x4=0;x1-x2-x3+2x4=0;3x1+x2+7x3-2x4=0;x1-3x2-12x3