一元一次方程50道练习题(带答案)
-
元一次方程
50
道练
习题(含答案)
1
、【基础题】解方程
:
(1
)
2x
+
1
=<
/p>
7
;
(2
)
5x
—
2
=
8
;
(3
)
3x
+
3
=
2x
+
7
;
(4
)
x
+
5
=
3x
—<
/p>
7
;
3
(8
)
x
=
x
+
16
.
(5)
11x
—
< br>2
=
14x
—
< br>9
;
(6
)
x
—
9
=
4x
+
27
;
(
7
)
丄
x
=<
/p>
—
-
x
+
3
;
4
2
1.1
、【基础题】解方程
:
(1
)
2x
+
6
=
1
;<
/p>
(2
)
10
x
—
3
=
9<
/p>
;
(
3
)
5x
—
2
=
7x
+
8
;
(
4
)
1
—
—
x
=
3x
+
-
;
4x<
/p>
—
2
=
3
—
x
2x
—
4
2 1
x
(
5
)
;
(
6
)
—
7x
+
2
=
;
(
7
)
—
x
=-
-
2
x
5
+
1
;
(
8
)
2x
—
3
1
=
2
、【基础题】解方程:
(
1
)
4
(
x
+<
/p>
0.5
)+
x
=
7
;
(
2
)
—
2 (x
—
1
)=
4
;
(
3
)
5(
x
—
1
)
=
1
;
(4
)
2
—
(
1
—
x
)=
—
(5
)
11x
+
1
=
5(2x
+
1)
;
(6)
4x
—
3(20
—
x
)=
3
.
2
2.1
、【基础题】解方程
:
(1
)
5
(x
+
8
)
—
5
=
0
;
(2
)
2 (3
—
x
)=
9
;
(3
)
—
3( x
+
3
)=
24
;
(4)
—
2( x
—
2
)=
12
;
(5)
12(2
—
3x
)=
4x
+
4
;
(6)
6
—
3(x
+ -)=-
;
3
3
(7)
2(200
—
15x
)=
70
+
25x
;
(
8
)
3(2x
+
1)
=
12
.
3
、【综合
I
】解方程
< br>:
(
1
)
x
+
2
=
x
.
(
2
)
3
—
x
=
x
+
1 1
5
—
;
4
;
2
3
(
3
)
3
-
(
x
+
1
)=
-
(
7
2x
—
3
)
-
4
(4
—
)
1
—
-(x
—
T
)
;
(
5
)
2x
—
1
x
+
2
1
1
3
=
3
4
1
;
(
6
)
丄(
4
x
+
2
—
(
x
—
1
)
=
2
—
5
-(x
+
1
1
1
1
1
(
7
)
-(x
+
14
)=
-(x
+
20
)
;
(
8
)
-(
x
+
15
)=-
—
-
(
x
—
7
)
.
7
4
5
2
3
3.1
、【综合
I
】解方程:
(1)
1
x
_
1
3
_
(
2
)
7x
—
5
3
;
(
3
)
2x
—
1
=
5x
+
1
;
(
4
)
lx
7
=
—
•
4
-
—
;
6
8
2
4
2
4
1
2x
8
+
5x
—
1
1 /
、
(5)
5
x
-
丄
(
3
—
=
1
;
(
6
)
1
2
3
=
1
;
(7
)
-(
2x
+
14
) =
4
—
2x
;
6
7
(8)
色
(
200
+
x
)
—
2(300
—
x
)=
300
9
10
10
25
1 / 2
2
- +
3
9x
—
6
—