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Populaire >

Marge is twice as old as Consuelo. The sum of their ages seven years ago was 13. How old are they now?

Solution

Marge is twice as old as Consuelo. The sum of their ages seven years ago was 13. How old are they now?

Solution

Consuelo^{'} s age is : 9

Marge^{'} s age is : 18

étapes des solutions

Translate the problem into an equation:

2 x - 7 + x - 7 = 13

Solutionner pour

x, 2 x - 7 + x - 7 = 13 : x = 9

Trouver age

Consuelo^{'} s age is : 9

Marge^{'} s age is : 18

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