题目内容
3x:64=
| x:35=
| ||||||||||
|
| ||||||||||
x:6=3:3
|
| ||||||||||
x:8=
| (3x-5):(x-
| ||||||||||
| 12:x=
| ||||||||||
10:x=4
| 19:5
| ||||||||||
|
| ||||||||||
(
|
(1)3x:64=
:4,
12x=64×
,
12x÷12=56÷12,
x=4
;
(2)x:35=
:7,
7x=35×
,
7x÷7=14÷7,
x=2;
(3)
=
,
16x-24=15x-5,
16x-24+24=15x-5+24,
16x-15x=15x+19-15x,
x=19;
(4)
=
,
6x=x+1,
6x-x=x+1-x,
5x÷5=1÷5,
x=
;
(5)x:6=3:3
,
3
x=6×3,
3
x÷3
=18÷3
,
x=5;
(6)
:180%=
,
x=180%×6.5,
x÷
=11.7÷
,
x=78;
(7)x:8=
:1
,
1
x=8×
,
1
x÷1
=
÷1
,
x=4;
(8)(3x-5):(x-
)=3:2,
6x-10=3x-1,
6x-10+10=3x-1+10,
6x-3x=3x+9-3x,
3x÷3=9÷3,
x=3;
(9)
:x=0.5:9,
0.5x=
×9,
0.5x÷0.5=4÷0.5,
x=8;
(10)12:x=
,
2x=12×1.5,
2x÷2=18÷2,
x=9;
(11)10:x=4
:
,
4
x=10×
,
4
x÷4
=8÷4
,
x=1
;
(12)19:5
=60%:x,
19x=5
×60%,
19x÷19=
÷19,
x=
;
(13)
:x=
:
,
x=
×
,
x÷
=
÷
,
x=
;
(14)
=
,
3x=24×0.5,
3x÷3=12÷3,
x=4;
(15)(
x):
=4:7,
x×7=
×4,
4x÷4=
÷4,
x=
.
| 7 |
| 8 |
12x=64×
| 7 |
| 8 |
12x÷12=56÷12,
x=4
| 3 |
| 4 |
(2)x:35=
| 2 |
| 5 |
7x=35×
| 2 |
| 5 |
7x÷7=14÷7,
x=2;
(3)
| 4x-6 |
| 5 |
| 3x-1 |
| 4 |
16x-24=15x-5,
16x-24+24=15x-5+24,
16x-15x=15x+19-15x,
x=19;
(4)
| 2 |
| x+1 |
| 1 |
| 3x |
6x=x+1,
6x-x=x+1-x,
5x÷5=1÷5,
x=
| 1 |
| 5 |
(5)x:6=3:3
| 3 |
| 5 |
3
| 3 |
| 5 |
3
| 3 |
| 5 |
| 3 |
| 5 |
| 3 |
| 5 |
x=5;
(6)
| 3 |
| 20 |
| 6.5 |
| x |
| 3 |
| 20 |
| 3 |
| 20 |
| 3 |
| 20 |
| 3 |
| 20 |
x=78;
(7)x:8=
| 3 |
| 5 |
| 1 |
| 5 |
1
| 1 |
| 5 |
| 3 |
| 5 |
1
| 1 |
| 5 |
| 1 |
| 5 |
| 24 |
| 5 |
| 1 |
| 5 |
x=4;
(8)(3x-5):(x-
| 1 |
| 3 |
6x-10=3x-1,
6x-10+10=3x-1+10,
6x-3x=3x+9-3x,
3x÷3=9÷3,
x=3;
(9)
| 4 |
| 9 |
0.5x=
| 4 |
| 9 |
0.5x÷0.5=4÷0.5,
x=8;
(10)12:x=
| 2 |
| 1.5 |
2x=12×1.5,
2x÷2=18÷2,
x=9;
(11)10:x=4
| 1 |
| 2 |
| 4 |
| 5 |
4
| 1 |
| 2 |
| 4 |
| 5 |
4
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 2 |
x=1
| 7 |
| 9 |
(12)19:5
| 7 |
| 10 |
19x=5
| 7 |
| 10 |
19x÷19=
| 57 |
| 25 |
x=
| 3 |
| 25 |
(13)
| 3 |
| 4 |
| 5 |
| 16 |
| 1 |
| 4 |
| 5 |
| 16 |
| 3 |
| 4 |
| 1 |
| 4 |
| 5 |
| 16 |
| 5 |
| 16 |
| 3 |
| 16 |
| 5 |
| 16 |
x=
| 3 |
| 5 |
(14)
| x |
| 24 |
| 0.5 |
| 3 |
3x=24×0.5,
3x÷3=12÷3,
x=4;
(15)(
| 4 |
| 7 |
| 2 |
| 3 |
| 4 |
| 7 |
| 2 |
| 3 |
4x÷4=
| 8 |
| 3 |
x=
| 2 |
| 3 |
练习册系列答案
相关题目