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人気のある Word Problems >

i thought of a number . 4 times the number increased by 30 equals 70 decreased by the number. What was the number

解

i t h o ug h t o f a n u mb er . 4 t im es t h e n u mb er in cre a se d b y 30 e q u a l s 70 d ecre a se d b y t h e n u mb er . Wha t w a s t h e n u mb er

解

The number : 8

解答ステップ

Represent the number with

x

A.T.Q.:

4 x + 30 = 70 - x

x

を解く

4 x + 30 = 70 - x : x = 8

The number : 8

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