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人気のある Word Problems >

When a number is doubled and then decreased by 9 the result is 19. Find the number

解

Wh e n a n u mb er i s d o u b l e d an d t h e n d ecre a se d b y 9 t h e res u lt i s 19. F in d t h e n u mb er

解

The number : 14

解答ステップ

Represent the number with

x

A.T.Q.:

x \cdot 2 - 9 = 19

x

を解く

x \cdot 2 - 9 = 19 : x = 14

The number : 14

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