班级 姓名 成绩
2233X- X= 2X + = 70%X + 20%X = 3.6
7554X×3=20×1 25% + 10X = 4 X - 15%X = 68
54X+38X=121 5X6X+5 =13.4 X÷2=
7716 125 ÷X=3
10 X÷
6=26×13354525310X-21×23=4 6X+5 =13.4 5X=1519
23X÷14=12 X÷635=2645÷1325 4+0.7X=102 X-38X=400 X+37 X=18 Xx×2+1=4×3328 5-3×5=5217 34X1348 3X=X+78X=34 3255 X = 72 89 4x-3 ×9 = 29 x14x20 25 X-13 X=3
10 821X=415 X 3X=25572 X-0.25=14 2X+132X=42 X+ X-0.125X=8 ×( 1313
6 + 8 )=12 X-37X=12 2X÷134=12
38 4X-6×23=2
X =
16×1651
12x + 16x = 4 2(x2.6)8 4χ-6=38
÷45=1528
8X=1×169651 X4=30%
14X=105
36 = 3X4
x-0.375x=56 5 X-2.4×5=8
3321
0.36×5- x = (x- 4.5) = 7 x- 25%x = 10
45324
x- 0.8x = 16+6 20 x– 8.5= 1.5 x- x -4= 21 538
X+25%X=90 X- X=
79
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