de

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Beliebt >

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

Lösung

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

Lösung

The numbers : 8, - 1

Schritte zur Lösung

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

Beliebte Beispiele

A triwinkel has a base of 16 meters and a height of 17.6 meters. What is the area?Khalil and Alana deposit 500.00 into a savings account which earns 9% interest compounded annually. They want to use the money in the account to go on a trip in 3 years. How much will they be able to spend?Ed is 7 years older than Ted. Ed’s age is also 3/2 times Ted’s age. How old are Ed and Ted?Twice the differenz of a number and 8 is at most-20 Zeke is saving up money to buy a car. Zeke puts 7,000.00 into an account which earns 9% interest, compounded quarterly. How much will he have in the account after 4 years?