PAIR OF LINEAR EQUATIONS IN TWO VARIABLES : PAIR OF LINEAR EQUATIONS IN TWO VARIABLES CHAPTER - 3
EXERCISE - 3.4
QUESTION 1:-Solve the following pair of linear equations by the elimination method and the substitution method:(iv) x/2 + 2y/3 = -1 and x - y/3 = 3 : QUESTION 1:- Solve the following pair of linear equations by the elimination method and the substitution method: (iv) x/2 + 2y/3 = -1 and x - y/3 = 3
QUESTION 2:-Form the pair of linear equations in the following problems, and find their solutions (if they exist) by the elimination method:(i) If we add 1 to the numerator and subtract 1 from the denominator, a fraction reduces to 1. It becomes ½ if we only add 1 to the denominator. What is the fraction? : QUESTION 2:- Form the pair of linear equations in the following problems, and find their solutions (if they exist) by the elimination method: (i) If we add 1 to the numerator and subtract 1 from the denominator, a fraction reduces to 1. It becomes ½ if we only add 1 to the denominator. What is the fraction?
(ii) Five years ago, Nuri was thrice as old as Sonu. Ten year later, Nuri will be twice as old Sonu. How old are Nuri and Sonu? : (ii) Five years ago, Nuri was thrice as old as Sonu. Ten year later, Nuri will be twice as old Sonu. How old are Nuri and Sonu?
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