NCERT, Class 10, Pair of Linear Equations in Two Variables, Chapter–3, Exercise-3.2 – Stepwise solution with proper explanation of each question

Q. 1 Solve the following pair of linear equations by the substitution method. (i) x+y=14 and x–y=4, (ii) s–t =3 and s/3+t/2=6, (iii) 3x–y=3 and 9x–3y=9, (iv) 0.2x+0.3y=1.3 and 0.4x+0.5y=2.3,…