Solve for
x
1)
3
4
x
-
2
=
2
x
+
4
x
=
1
2)
3
x
-
2
=
8
2
x
+
3
x
=
-
2
3)
5
3
x
+
5
=
5
4
x
+
4
x
=
1
4)
2
4
x
+
8
=
3
2
x
+
8
x
=
4
5)
7
4
x
-
4
=
5
5
x
-
2
x
=
6
6)
2
15
+
5
x
=
3
4
x
-
20
x
=
45
7)
-
5
-
3
x
-
27
=
-
9
13
-
x
x
=
-
42
8)
9
27
-
3
x
=
-
2
-
4
x
+
1
x
=
7