vi

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Phổ biến Word Problems >

Find the value of two numbers if their sum is 12 and their hiệu is 4

Lời Giải

F in d t h e v a l u e o f tw o n u mb ers i f t h e i r s u m i s 12 an d t h e i r d i ff ere n ce i s 4

Lời Giải

The numbers : 8, 4

Các bước giải pháp

Represent the numbers with

x and y

:

number 1 : x

number 2 : y

A.T.Q.:

x + y = 12

x - y = 4

x + y = 12, x - y = 4 : x = 8, y = 4

The numbers : 8, 4

Ví dụ phổ biến

3 times the sum of 4 and a number is 18.The chu vi of a circle is 69.08 kilometers. What is the circle's diameter?The bán kính of a circle is 6 cm. Find its area to the nearest whole number.Seven times the hiệu of a number and 7.Khloe is going to invest in an account paying an interest rate of 1.5% compounded annually. How much would Khloe need to invest, to the nearest dollar, for the value of the account to reach 54,000 in 11 years?