#new_composite_mathematics #R_S_AGGARWAL_MATHS_SOLUTION Solution of Q.11, Q.12, Q.13, Q.14, Q.15, Q.16, Q.17 and Q.18 Exercise - 9B Chapter- 9 Class -6TH CLASS-6TH /CHAPTER- 9 / LINEAR EQUATIONS IN ONE VARIABLE /EX - 9B / PART- 2 / R S AGGARWAL MATHS /