解方程
X － 27 X=4
3
2X + 25 = 35 70%X + 20%X =
X ×5
3=20×41 25% + 10X = 5
4 X - 15%X = 68
X ＋8
3X ＝121 5X －3×
215＝75 32X ÷4
1
＝12
6X ＋5 = 83
4143=+X 3X=8
3
X ÷72=
167 X ＋87X=43 4X －6×3
2=2
125 ÷X=310 53 X = 7225 98 X = 61×51
16
X ÷
356=4526×2513 4x －3 ×9 = 29 21x + 6
1
x = 4
103X －21×3
2
=4
6X ＋5 = 25 X-13 X=3
10
4χ－6＝38
5X=
1915 218X=154 X ÷54=28
15
32X ÷41=12 53X=7225 98X=61×51
16
X ÷
356=4526÷2513 =41 4
X
=30%
4+=102 3
2
X+2
1X=42 X+4
1X=105
X-8
3X=400 =8
X 36 = 4
3
X+37 X=18 X ×( 16 + 38 )=1312 x －=6
5
x ×3
2+2
1=4×8
3 X －7
3X ＝12 5 X －×5＝8
×5- 34 x = 35 23 (x- = 7 1
2
x- 25%x = 10
x- = 16+6 20 x – = x- 4
5
x -4= 21
X ＋25%X=90 X －37 X= 8
9
(1)5
3
χ+χ=6 (2): χ=5: (3)χ－χ=
(4)
x 10=8.05
.2
(5)6×3－χ= (6)17－5χ=+351
(7)4x =
52.1 (8) χ－41χ=83 (9)×6
5
－2χ=8
x=
6.05.1(11)
5
3×
2
1－χ=
5
1
(10)
2.1
