1. 24 2 4
*24 +2 *4
4 16
8 (from Eqation 1)
*2 (choose one 2)
4 16
+4
8 4 16 16
Equation 1
4 1 ( 6+1) 6
4+1 7 6
5 7 6

2. 22 2 2
*22 +2 *2
4 4
4 (from Eqation 1)
*2 (choose one 2)
2 8
+2
4 4 8 4
Equation 1

3. 25 2 5
*25 +2 *5
4 25
10 (from Eqation 1)
*2 (choose one 2)
5 20
+5
10 4 20 25
Equation 1
4 2 ( 0+2) 5
4+2 2 5
6 2 5