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شائع Word Problems >

Triple the sum of a number and 6 is the same as 7 more than the number.

الحلّ

T r i pl e t h e s u m o f a n u mb er an d 6 i s t h e s am e a s 7 m ore t han t h e n u mb er .

الحلّ

The number : - 5 \frac{1}{2}

خطوات الحلّ

Represent the number with

x

A.T.Q.:

3 (x + 6) = 7 + x

3 (x + 6) = 7 + x, x

حلّ لـ:

x = - \frac{11}{2}

حوّل من كسر تخيّليّ لعدد مختلط:

\frac{11}{2} = 5 \frac{1}{2}

The number : - 5 \frac{1}{2}

أمثلة شائعة

The product of two consecutive even integers is eight.if a number divided by 5 is increased by-28, the result is-10 woman drives her car 408 miles in 6 hours. At this rate how far will she travel in 8 hours?3600 dollars is placed in an account with annual interest rate of 9%. How much will be in the account after 25 years, to the nearest cent Martina deposits 700 into an account that pays simple interest at a rate of 2% per year. How much interest will she be paid in the first 5 years?