To explain: why substitution method is sometimes more helpful than elimination and sometimes elimination is more helpful than substitution.
Explanation of Solution
Given:
Sometimes substitution method is more helpful and sometimes elimination method is more helpful.
Calculation:
It is to compare the use of the elimination and substitution methods for solving a system of equation.
When solving a system of two equations with two unknowns, if in one equation has the coefficient
In the system has a higher degree, it is easier to use elimination methods, usually based on matrices.
Chapter 3 Solutions
Algebra 2
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