don't know how to tackle this type of problem.
Carla is 4 times older than her daugther in 30 years she will be half her age how old are they now?
Carla's present age is y. Carla's age in 30 years time is y + 30.
Use the above to form equations from the statements below:
"Carla is 4 times older than her daugther":
"in 30 years she [the daughter] will be half her [Carla] age":
Solve the equations for x and y.