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Proper, Improper and Mixed Fractions
Fractional Arithmetic
Changing the Subject of an Expression
Multiplying Expressions
Factorising Quadratic Expressions
Solving Linear Equations
Ex. 0:
-7 x
+
-4
=
5 x
+
13
==> x
=
17
-12
Ex. 1:
14 x
+
5
=
17 x
+
14
==> x
=
3
-1
Ex. 2:
5 x
+
-14
=
-6 x
+
2
==> x
=
16
11
Ex. 3:
11 x
+
7
=
15 x
+
-11
==> x
=
-9
-2
Ex. 4:
-14 x
+
7
=
17 x
+
0
==> x
=
-7
-31
Ex. 5:
-8 x
+
-2
=
6 x
+
16
==> x
=
9
-7
Ex. 6:
6 x
+
-18
=
-9 x
+
19
==> x
=
37
15
Ex. 7:
3 x
+
-19
=
-14 x
+
16
==> x
=
35
17
Ex. 8:
-4 x
+
10
=
9 x
+
-9
==> x
=
-19
-13
Ex. 9:
-5 x
+
7
=
-15 x
+
-19
==> x
=
-13
5