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Популярное Word Problems >

Two times a number plus three times another number equals 13. The sum of the two numbers is 7. What are the numbers?

Решение

Tw o t im es a n u mb er pl u s t h ree t im es an o t h er n u mb er e q u a l s 13. T h e s u m o f t h e tw o n u mb ers i s 7. Wha t a re t h e n u mb ers ?

Решение

The numbers : 8, - 1

Шаги решения

Represent the numbers with

x and y

:

number 1 : x

number 2 : y

A.T.Q.:

2 x + 3 y = 13

x + y = 7

2 x + 3 y = 13, x + y = 7 : x = 8, y = - 1

The numbers : 8, - 1

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