文档介绍：(+x)+x=÷2
2(X+X+)=
25000+x=6x
3200=450+5X+X
X-=6
12x-8x=
*2X=15
=
x+=
x-=
91÷x=
X+=
15x=3
3x-8=16
7(x-2)=2x+3
3x+9=27
18(x-2)=270
12x=300-4x
7x+=
3x÷5=
30÷x+25=85
×8-2x=6
6x-×3=
410-3x=170
3(x+)=21
+8=43
6x-3x=18
+18=3x
5×3-x÷2=8
÷x=
=
x÷=90
9x-40=5
x÷5+9=21
48-27+5x=31
+x+21=56
x+2x+18=78
(200-x)÷5=30
(x-140)÷70=4
(x+6)=×
4(x-)=
7(+x)=
(-)÷x=4
x+=
=
-x=
÷x=
5x+=
5(x+8)=102
x+3x+10=70
3(x+3)=50-x+3
5x+15=60
-5x=2
×7+4x=
x÷-=
4x-×6=
20-9x=×
6x+=
150×2+3x=690
2x-20=4
3x+6=18
2(+x)=
(x-3)÷2=
+9x=
3x=x+100
x+=
6x+18=48
3(x+)=
12x-9x=
13(x+5)=169
2x-97=
-48=
42x+25x=134
(x+)=
2(x-3)=
65x+7=42
9x+4×=91
+=134
+=51
89x-43x=
5x-45=100
-=
=2x=56
4x-x=
-x=28
X-=
155X-2X=18
3X+=5
×2=+x
26×=2x+10
×16―16×=4x
-X=
÷X=
23x=14x+14
x+14x=65
3-5x=80
+6x=54
-=
9+4x=40
2x+8=16
23x-14x=14
x+7x=8
9x-3x=6
6x-8=4
5x+x=9
x-8=6x
4/5x=20
2x-6=12
7x+7=14
6x-6=0
5x+6=11
2x-8=10
1/2x-8=4
x-5/6=7
3x+7=28
3x-7=26
9x-x=16