Find Their Present Age

[nycmath]

Stella is 13 years younger than Kwame. Nine years from now, the sum of their ages will be 43. Find the present age of each.

Let me see.

Kwame's age now = x

Stella's age now = x - 13

Kwame's age in 9 years = x + 9

Stella's age in 9 years = (x - 13) + 9

Kwame's age in 9 years plus Stella's age in 9 years = 43

x + 9 + (x - 13) + 9 = 43

Is this the correct equation?

[Eigenvalue]

Yes, this equation is correct.