Question

Kim's age is twice that of her sister. When you add Kim's age to her sister's age, you get 36. How old is each sister?

Answer 1

A)
Let x = sister's age
Kim's age is twice that of her sister
so Kim's age = 2x
Kim’s age + Sister’s age = 36
equation:
x + 2x = 36

b) solve the equation x + 2x = 36

x + 2x = 36
3x = 36
  x = 36 / 3
  x = 12
  Kim's age = 2x = 2(12) = 24


answer
Sister's age is 12 and  Kim's age is 24. 

Answer 2

   A. 2x+x=36
        x=12


 B.  2(12)+12=36
      24+12=36


C. Brainliest if satisfied :D