Ms naima is 5 years younger than twice nasser’s age. The sum of their ages is 40. How old is ms naima?

Ms. Naima is 25.
(I used s for nasser and m for naima)

Set up equations.
2s - 5 = m

s + m = 40
m = 40 - s

m = m so...

40 - s = 2s - 5
Move like terms to same side

40 + 5 = 2s + s
45 = 3s
15 = s

Substitute s into an equation.

(15) + m = 40

m=40-15
m=25

since naima is represented by m, naima’s age is 25.