If twice

If twice the daughter's age is added to the mother's age, the sum is 56. but if twice the mother's age is added to the daughter's age, the sum is 82. find the age of the mother and daughter.

Correct answer:

d =  10
m =  36

Step-by-step explanation:


2d+m=56
2m+d=82

2·d+m=56
2·m+d=82

2d+m = 56
d+2m = 82

Row 2 - 1/2 · Row 1 → Row 2
2d+m = 56
1.5m = 54


m = 54/1.5 = 36
d = 56-m/2 = 56-36/2 = 10

d = 10
m = 36

Our linear equations calculator calculates it.



Did you find an error or inaccuracy? Feel free to write us. Thank you!







Tips for related online calculators
Do you have a system of equations and looking for calculator system of linear equations?
Do you want to convert time units like minutes to seconds?

You need to know the following knowledge to solve this word math problem:

Units of physical quantities:

Related math problems and questions: