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Cody is twice as old as Evan. Three years ago the sum of their ages was 27. Find the age of Evan three years ago.

Solución

Cody is twice as old as Evan. Three years ago the sum of their ages was 27. Find the age of Evan three years ago.

Solución

Eva n^{'} s age 3 years ago : 8

Pasos de solución

Translate the problem into an equation:

2 x - 3 + x - 3 = 27

Resolver para

x, 2 x - 3 + x - 3 = 27 : x = 11

Hallar Evan's age 3 years ago:

8

Eva n^{'} s age 3 years ago : 8

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