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Phổ biến Word Problems >

One number is three less than four times another number. If the sum of the numbers is 7, find the numbers.

Lời Giải

O n e n u mb er i s t h ree l ess t han f o u r t im es an o t h er n u mb er . I f t h e s u m o f t h e n u mb ers i s 7, f in d t h e n u mb ers .

Lời Giải

The numbers : 5, 2

Các bước giải pháp

Represent the numbers with

x and y

:

number 1 : x

number 2 : y

A.T.Q.:

x = 4 y - 3

x + y = 7

x = 4 y - 3, x + y = 7 : x = 5, y = 2

The numbers : 5, 2

Ví dụ phổ biến

The hiệu of the squares of two consecutive even integers is 84. Find the integers.3 times a number plus 4 equals 10 more than the number One number is 2 more than 2 times another. The sum of the numbers is 5. Find the two numbers.How many hours does it take a car to travel 65 miles at an trung bình speed of 65 miles per hour?the sum of the ages of a wood plaque and a bronze plaque is 20 years. four years ago, the bronze plaque was one half the age of the wood plaque. Find the present age of each plaque