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Popolare Word Problems >

Twice Jack's age plus 5 is 21. Write and solve an equation. How old is Jack?

Soluzione

Tw i ce J a c k^{'} s a g e pl u s 5 i s 21. W r i t e an d so l v e an e q u a t i o n . Ho w o l d i s J a c k ?

Soluzione

Jack^{'} s age is : 8

Fasi della soluzione

Translate the problem into an equation:

2 x + 5 = 21

Risolvi per

x, 2 x + 5 = 21 : x = 8

Jack^{'} s age is : 8

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