[-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3)
5+21*8/2-6-59
68/21-8-11*8+61
-2/9-7/9-56
4.6-(-3/4+1.6-4-3/4)
1/2+3+5/6-7/12
[2/3-4-1/4*(-0.4)]/1/3+2
22+(-4)+(-2)+4*3
-2*8-8*1/2+8/1/8
(2/3+1/2)/(-1/12)*(-12)
(-28)/(-6+4)+(-1)
2/(-2)+0/7-(-8)*(-2)
(1/4-5/6+1/3+2/3)/1/2
18-6/(-3)*(-2)
(5+3/8*8/30/(-2)-3
(-84)/2*(-3)/(-6)
1/2*(-4/15)/2/3
-3x+2y-5x-7y
有理数的加减混合运算
x+1=1
x+1=2
x+1=3
x+1=4
x+1=5
x+1=6
X+2x-6=4
X+2x-63=23
X+2x+24=17
X+2x-13=56
X+23=x-34
X-66=34
5-35X=15X
X+23=64
23X=22X+6
5-4X=2X+3
3x-3.6=X
X-9X+36=4
4(x-2)-3(4x-1)=9(1-x)
3(1+X)=5(2-X)
解方程都是我自己出的,我不贪心20分就够了 [-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3)
5+21*8/2-6-59
68/21-8-11*8+61
-2/9-7/9-56
4.6-(-3/4+1.6-4-3/4)
1/2+3+5/6-7/12
[2/3-4-1/4*(-0.4)]/1/3+2
22+(-4)+(-2)+4*3
-2*8-8*1/2+8/1/8
(2/3+1/2)/(-1/12)*(-12)
(-28)/(-6+4)+(-1)
2/(-2)+0/7-(-8)*(-2)
(1/4-5/6+1/3+2/3)/1/2
18-6/(-3)*(-2)
(5+3/8*8/30/(-2)-3
(-84)/2*(-3)/(-6)
1/2*(-4/15)/2/3
-3x+2y-5x-7y
有理数的加减混合运算
x+1=1
x+1=2
x+1=3
x+1=4
x+1=5
x+1=6
X+2x-6=4
X+2x-63=23
X+2x+24=17
X+2x-13=56
X+23=x-34
X-66=34
5-35X=15X
X+23=64
23X=22X+6
5-4X=2X+3
3x-3.6=X
X-9X+36=4
4(x-2)-3(4x-1)=9(1-x)
3(1+X)=5(2-X)
解方程都是我自己出的,我不贪心20分就够了