Practica + - page 34

1171
22
.
Resuelve las siguientes ecuaciones de primer grado.
a)
2
+
x
+
3
x
+
2
5
=
7
x
+
6
10
e)
7
2
x
9
+
2(
x
2)
3
2
3
=
3
x
9
x
b)
6
x
4
6
+
x
2
3
+
1
=
2
x
3
+
x
1
2
f)
6
x
+
5
4
3
2
x
4
6
+
x
+
2
4
⎜⎜⎜⎜
⎟⎟⎟⎟
=
3
x
+
7
4
c)
6
x
1
15
4
+
x
5
=
x
+
4
6
6
+
x
10
g)
2
x
7
6
8
+
7
x
9
+
x
=
x
+
5
6
1
x
9
d)
3
x
4
4
+
x
3
2
x
+
5
3
=
5
x
+
6
12
h)
3(2
x
1)
5
x
7
2
=
5
+
x
10
5(
x
3)
4
+
3
5
Ecuaciones de primer grado
Ecuaciones
10
2
+
x
+
3
x
+
2
5
⎜⎜⎜⎜
⎟⎟⎟⎟
=
10
7
x
+
6
10
20
+
10
x
+
2(3
x
+
2)
=
7
x
+
6
20
+
10
x
+
6
x
+
4
=
7
x
+
6
10
x
+
6
x
7
x
=
20
4
+
6
9
x
=
18
x
=
2
9
7
2
x
9
+
2(
x
2)
3
2
3
⎜⎜⎜⎜
⎟⎟⎟⎟
=
9
3
x
9
x
⎜⎜⎜⎜
⎟⎟⎟⎟
7
2
x
+
6(
x
2)
6
=
3
x
9
x
7
2
x
+
6
x
12
6
=
3
x
9
x
2
x
+
6
x
+
x
+
9
x
=
3
7
+
12
+
6
14
x
=
14
x
=
1
6
6
x
4
6
+
x
2
3
+
1
⎜⎜⎜⎜
⎟⎟⎟⎟
=
6
2
x
3
+
x
1
2
⎜⎜⎜⎜
⎟⎟⎟⎟
6
x
4
+
2(
x
2)
+
6
=
2
2
x
+
3(
x
1)
6
x
4
+
2
x
4
+
6
=
4
x
+
3
x
3
6
x
+
2
x
4
x
3
x
=
3
+
4
+
4
6
x
=
1
6
x
+
5
4
3
2(2
x
4 )
12
+
3(
x
+
2)
12
⎜⎜⎜⎜
⎟⎟⎟⎟
=
3
x
+
7
4
6
x
+
5
4
3
4
x
8
12
+
3
x
+
6
12
⎜⎜⎜⎜
⎟⎟⎟⎟
=
3
x
+
7
4
6
x
+
5
4
3
7
x
2
12
=
3
x
+
7
4
6
x
+
5
4
7
x
2
4
=
3
x
+
7
4
6
x
+
5
(7
x
2)
=
3
x
+
7
6
x
+
5
7
x
+
2
=
3
x
+
7
6
x
7
x
3
x
=
7
5
2
4
x
=
0
x
=
0
20
3(2
x
1)
5
x
7
2
⎜⎜⎜⎜
⎟⎟⎟⎟
=
20
5
+
x
10
5(
x
3)
4
+
3
5
⎜⎜⎜⎜
⎟⎟⎟⎟
12(2
x
1)
10(
x
7)
=
2(5
+
x
)
25(
x
3)
+
12
24
x
12
10
x
+
70
=
10
+
2
x
+
25
x
+
75
+
12
24
x
10
x
2
x
25
x
=
10
+
75
+
12
+
12
70
13
x
=
39
x
=
39
13
x
=
3
18
2
x
7
6
8
+
7
x
9
+
x
⎜⎜⎜⎜
⎟⎟⎟⎟
=
18
x
+
5
6
1
x
9
⎜⎜⎜⎜
⎟⎟⎟⎟
3(2
x
7)
2(8
+
7
x
)
+
18
x
=
3(
x
+
5)
2(1
x
)
6
x
21
16
14
x
+
18
x
=
3
x
+
15
2
+
2
x
6
x
14
x
+
18
x
3
x
2
x
=
15
2
+
21
+
16
5
x
=
50
x
=
50
5
x
=
10
12
3
x
4
4
+
x
3
2
x
+
5
3
⎜⎜⎜⎜
⎟⎟⎟⎟
=
12
5
x
+
6
12
⎜⎜⎜⎜
⎟⎟⎟⎟
3(3
x
4 )
+
6(
x
3)
12
x
+
4
5
=
5
x
+
6
9
x
12
+
6
x
18
12
x
+
20
=
5
x
+
6
9
x
+
6
x
12
x
5
x
=
6
+
12
+
18
20
2
x
=
16
x
=
16
2
x
=
8
30
6
x
1
15
4
+
x
5
⎜⎜⎜⎜
⎟⎟⎟⎟
=
30
x
+
4
6
6
+
x
10
⎜⎜⎜⎜
⎟⎟⎟⎟
2(6
x
1)
6( 4
+
x
)
=
5(
x
+
4 )
3(6
+
x
)
12
x
2
24
6
x
=
5
x
+
20
18
3
x
12
x
6
x
5
x
+
3
x
=
20
18
+
2
+
24
4
x
=
28
x
=
28
4
x
=
7
1...,24,25,26,27,28,29,30,31,32,33 35,36,37,38,39,40,41,42,43,...44
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