To explain: The reason for which the best way to solve the system of equations is by substitution.
Explanation of Solution
Given information:
Yes, because according to the substitution rule, if in either of the two equations if one can find easily the value of one variable in terms of other variable then the substitution is best.
Solution:
Take out the value of variable y in terms of x from equation (i)
Put the value in equation (ii)
Put the value of x in equation (iii)
Chapter 6 Solutions
High School Math 2015 Common Core Algebra 1 Student Edition Grade 8/9
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