Answer :
4(4) + 2 = 18
16 + 2 = 18
18 = 18
True
4(5) + 2 = 18
20 + 2 = 18
22 = 18
False
4(6) + 2 = 18
24 + 2 = 18
26 = 18
False
4(7) + 2 = 18
28 + 2 = 18
30 = 18
False
The solution set is {4}.
16 + 2 = 18
18 = 18
True
4(5) + 2 = 18
20 + 2 = 18
22 = 18
False
4(6) + 2 = 18
24 + 2 = 18
26 = 18
False
4(7) + 2 = 18
28 + 2 = 18
30 = 18
False
The solution set is {4}.