what is thomas’s age?

Question

huilan is 12 years younger than thomas. the sum of their ages is 68.

Answer 1

Let x be Thomas's age. Since Hulian is 12 years younger than Thomas, then Hulian's age must be x - 12.

Since the sum of their ages is 68 then x + x-12 = 68.

Now solve for x.

x + x - 12 = 68

2x - 12 = 68

+12 +12

2x = 80

2x/2 = 80/2

x = 40 which is Thomas's age

Answer 2

x+x-12 = 68

2x-12 = 68

2x = 80

x = 40

40 and 28