Q1. Solve the following pair of linear equations by the elimination method and the substitution method :
(i)
Elimination Method:
Given, equations
Now, multiplying (1) by 3 we, get
Now, Adding (2) and (3), we get
Substituting this value in (1) we, get
Hence,
Substitution method :
Given, equations
Now, from (1) we have,
substituting this value in (2)
Substituting this value of x in (3)
Hence,