1
.
3X
+
4X
-
54
=
-
5X
+
65
____________________
+
____________________
+
____________________
=
____________________
+
____________________
____________________
=
____________________
____________________
=
____________________
/
____________________
2
.
x
/
5
+
3
=
56
____________________
/
____________________
=
____________________
-
____________________
____________________
/
____________________
=
____________________
____________________
=
____________________
x
____________________
____________________
=
____________________
