To solve: the system of two equations in two variables.
Answer to Problem 4ST
The fraction is
Explanation of Solution
Given information:
The numerator of a fraction is 3 less than the denominator. If 5 is added to each, the value of the resulting fraction is
Formula used:
Fraction problem
Step1. The problem asks for .
Step2. Let n = the numerator of the fraction
Let d = the denominator of the fraction.
Then
Step3. Use the facts of the problem to write two equations.
Step4. Solve the equations.
Calculation:
Consider ,
Let d = the denominator of the fraction.
The numerator of a fraction
According to the question,
Putting equation (i) in (ii) we get,
Put value of d in equation (i)
Therefore, the numerator is 4 and the denominator is 7.
Hence, the fraction is
Chapter 9 Solutions
Algebra: Structure And Method, Book 1
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