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求未知数x(1)4x-4×12=18(2)36x=543(3)3x+x+6=26(4)15:12=10.25:x.

题目详情
求未知数x
(1)4x-4×
1
2
=18
(2)
36
x
=
54
3
(3)3x+x+6=26 (4)
1
5
1
2
=
1
0.25
:x.
求未知数x
(1)4x-4×
1
2
=18
(2)
36
x
=
54
3
(3)3x+x+6=26 (4)
1
5
1
2
=
1
0.25
:x.
求未知数x
(1)4x-4×
1
2
=18
(2)
36
x
=
54
3
(3)3x+x+6=26 (4)
1
5
1
2
=
1
0.25
:x.
求未知数x
(1)4x-4×
1
2
=18
(2)
36
x
=
54
3
(3)3x+x+6=26 (4)
1
5
1
2
=
1
0.25
:x.
求未知数x
(1)4x-4×
1
2
=18
(2)
36
x
=
54
3
(3)3x+x+6=26 (4)
1
5
1
2
=
1
0.25
:x.
(1)4x-4×
1
2
=18
(2)
36
x
=
54
3
(3)3x+x+6=26 (4)
1
5
1
2
=
1
0.25
:x.
(1)4x-4×
1
2
=18
(2)
36
x
=
54
3
(3)3x+x+6=26 (4)
1
5
1
2
=
1
0.25
:x.
(1)4x-4×
1
2
=18
(2)
36
x
=
54
3
(3)3x+x+6=26 (4)
1
5
1
2
=
1
0.25
:x.
(1)4x-4×
1
2
=18
1
2
=18
1
2
1 2 1 1 2 2 (2)
36
x
=
54
3
36
x
=
54
3
36
x
36 x 36 36 x x
54
3
54
3
54 3 54 54 3 3 (3)3x+x+6=26 (4)
1
5
1
2
=
1
0.25
:x.
1
5
1
2
=
1
0.25
:x.
1
5
1 5 1 1 5 5
1
2
=
1
0.25
:x.
1
2
1 2 1 1 2 2
1
0.25
:x.
1
0.25
1 0.25 1 1 0.25 0.25
▼优质解答
答案和解析

(1)4x-4×
1
2
=18,
4x-2=18,
4x-2+2=18+2,
4x=20,
4x÷4=20÷4,
x=5;

(2)
36
x
=
54
3

54x=36×3,
54x=108,
54x÷54=108÷54,
x=2;

(3)3x+x+6=26,
4x+6=26,
4x+6-6=26-6,
4x=20,
4x÷4=20÷4,
x=5;

(4)
1
5
1
2
=
1
0.25
:x,
1
5
x=
1
2
×
1
0.25

1
5
x=2,
1
5
1
5
=2÷
1
5

x=10.

(1)4x-4×
1
2
=18,
4x-2=18,
4x-2+2=18+2,
4x=20,
4x÷4=20÷4,
x=5;

(2)
36
x
=
54
3

54x=36×3,
54x=108,
54x÷54=108÷54,
x=2;

(3)3x+x+6=26,
4x+6=26,
4x+6-6=26-6,
4x=20,
4x÷4=20÷4,
x=5;

(4)
1
5
1
2
=
1
0.25
:x,
1
5
x=
1
2
×
1
0.25

1
5
x=2,
1
5
1
5
=2÷
1
5

x=10.

(1)4x-4×
1
2
=18,
4x-2=18,
4x-2+2=18+2,
4x=20,
4x÷4=20÷4,
x=5;

(2)
36
x
=
54
3

54x=36×3,
54x=108,
54x÷54=108÷54,
x=2;

(3)3x+x+6=26,
4x+6=26,
4x+6-6=26-6,
4x=20,
4x÷4=20÷4,
x=5;

(4)
1
5
1
2
=
1
0.25
:x,
1
5
x=
1
2
×
1
0.25

1
5
x=2,
1
5
1
5
=2÷
1
5

x=10.

(1)4x-4×
1
2
=18,
4x-2=18,
4x-2+2=18+2,
4x=20,
4x÷4=20÷4,
x=5;

(2)
36
x
=
54
3

54x=36×3,
54x=108,
54x÷54=108÷54,
x=2;

(3)3x+x+6=26,
4x+6=26,
4x+6-6=26-6,
4x=20,
4x÷4=20÷4,
x=5;

(4)
1
5
1
2
=
1
0.25
:x,
1
5
x=
1
2
×
1
0.25

1
5
x=2,
1
5
1
5
=2÷
1
5

x=10.

(1)4x-4×
1
2
=18,
4x-2=18,
4x-2+2=18+2,
4x=20,
4x÷4=20÷4,
x=5;

(2)
36
x
=
54
3

54x=36×3,
54x=108,
54x÷54=108÷54,
x=2;

(3)3x+x+6=26,
4x+6=26,
4x+6-6=26-6,
4x=20,
4x÷4=20÷4,
x=5;

(4)
1
5
1
2
=
1
0.25
:x,
1
5
x=
1
2
×
1
0.25

1
5
x=2,
1
5
1
5
=2÷
1
5

x=10.
1
2
1 2 1 1 1 2 2 2 =18,
4x-2=18,
4x-2+2=18+2,
4x=20,
4x÷4=20÷4,
x=5;

(2)
36
x
=
54
3

54x=36×3,
54x=108,
54x÷54=108÷54,
x=2;

(3)3x+x+6=26,
4x+6=26,
4x+6-6=26-6,
4x=20,
4x÷4=20÷4,
x=5;

(4)
1
5
1
2
=
1
0.25
:x,
1
5
x=
1
2
×
1
0.25

1
5
x=2,
1
5
1
5
=2÷
1
5

x=10.
36
x
36 x 36 36 36 x x x =
54
3

54x=36×3,
54x=108,
54x÷54=108÷54,
x=2;

(3)3x+x+6=26,
4x+6=26,
4x+6-6=26-6,
4x=20,
4x÷4=20÷4,
x=5;

(4)
1
5
1
2
=
1
0.25
:x,
1
5
x=
1
2
×
1
0.25

1
5
x=2,
1
5
1
5
=2÷
1
5

x=10.
54
3
54 3 54 54 54 3 3 3 ,
54x=36×3,
54x=108,
54x÷54=108÷54,
x=2;

(3)3x+x+6=26,
4x+6=26,
4x+6-6=26-6,
4x=20,
4x÷4=20÷4,
x=5;

(4)
1
5
1
2
=
1
0.25
:x,
1
5
x=
1
2
×
1
0.25

1
5
x=2,
1
5
1
5
=2÷
1
5

x=10.
1
5
1 5 1 1 1 5 5 5 :
1
2
=
1
0.25
:x,
1
5
x=
1
2
×
1
0.25

1
5
x=2,
1
5
1
5
=2÷
1
5

x=10.
1
2
1 2 1 1 1 2 2 2 =
1
0.25
:x,
1
5
x=
1
2
×
1
0.25

1
5
x=2,
1
5
1
5
=2÷
1
5

x=10.
1
0.25
1 0.25 1 1 1 0.25 0.25 0.25 :x,
1
5
x=
1
2
×
1
0.25

1
5
x=2,
1
5
1
5
=2÷
1
5

x=10.
1
5
1 5 1 1 1 5 5 5 x=
1
2
×
1
0.25

1
5
x=2,
1
5
1
5
=2÷
1
5

x=10.
1
2
1 2 1 1 1 2 2 2 ×
1
0.25

1
5
x=2,
1
5
1
5
=2÷
1
5

x=10.
1
0.25
1 0.25 1 1 1 0.25 0.25 0.25 ,
1
5
x=2,
1
5
1
5
=2÷
1
5

x=10.
1
5
1 5 1 1 1 5 5 5 x=2,
1
5
1
5
=2÷
1
5

x=10.
1
5
1 5 1 1 1 5 5 5 x÷
1
5
=2÷
1
5

x=10.
1
5
1 5 1 1 1 5 5 5 =2÷
1
5

x=10.
1
5
1 5 1 1 1 5 5 5 ,
x=10.