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פּוֹפּוּלָרִי Word Problems >

If the sum of a number and five is tripled, the result is seven less than twice the number. Find the number.

פתרון

I f t h e s u m o f a n u mb er an d f i v e i s t r i pl e d, t h e res u lt i s se v e n l ess t han tw i ce t h e n u mb er . F in d t h e n u mb er .

פתרון

The number : - 22

צעדי פתרון

Represent the number with

x

A.T.Q.:

(x + 5) \cdot 3 = 2 x - 7

(x + 5) \cdot 3 = 2 x - 7, x

פתור בשביל:

x = - 22

The number : - 22

דוגמאות פופולריות

if 14 is subrtacted from an number, the result is 37. what is the number Alex is ten years younger than Toni. Five years later, Toni will be twice as old as Alex. Find their present ages.A father is 7times as old as his son. Two years ago, the father was 13 times as old asa his son. What are their preaent ages?Lori is 6 years younger than micah. In 5 years, Lori's age will be 3/4 of Micahs age. How old is lori now?15 years from now Steven will be twice as old as Maria. The current sum of the ages of Steven and Maria is 33. How old is Maria right now?