(1)
35χ+χ=6 (2): χ=5: (3)χ-χ= (4)
102.5x=0.8 (5)6×3-χ= (6)17-5χ=+315 (7)
x14=.25 (8) χ-14χ=38
(9)×56-2χ=8
(10)x1.51.2=0.6
(11)315×2-χ=15
(12)23 χ+50%=42
(13)4χ-13=31
(14)+8χ=27
12 (15)2χ+×3=1412
(16) χ×(1-38)=123
(17)χ-14χ=
38 (18)312÷4χ=
(19)x1.50.4=6
(20):χ=235:10
(21)3χ-16×3=102 (22)x:1
719=20:13(23)4χ+= (24)χ:=
13:4 (25)
2373:7=9:χ (26) χ-2=
(27)
x0.67=3.5 (28)12x-114=8
(29) χ: 12=14:18
(30)1112: χ=4:8
(31)3χ+124χ=213
(32)514:57=: χ
(33)131-χ= (34)
13:=80%: χ (35)4χ+=
(36)34-12χ=15
(37)23χ-12χ+125=3(38)34:35=χ:12
(39) χ-172χ=10
(40) χ:34=12:3
(41)χ-×2= (42)
14:18=χ: (43)-5χ= (44):5=:χ
(45)
12:χ=34:6 (46)35×-χ=
(47) χ-156χ=12
(48)13: χ=15:67
(49)x0.10=12
(50)
21χ-χ+= 32132:=χ: 243(51)4:6=15:χ (52)