Find Present Age

[nycmath]

Sam is 3 times as old as Tim. In 4 years their ages sum to 56. How old are they now?

Let me see.

Tim's age = x

Sam's age = 3x

Tim's age in 4 years = x + 4

Sam's age in 4 years = 3x + 4

This is my equation:

x + 4 + 3x + 4= 56

Is this the correct equation?

[Eigenvalue]

Yes, this is the correct equation.