***TON() to get oblen we substitute this value of xin Equation (2) to get 2(4-2) + 4y - 12 = 0 i.e.. 8-12 - 0 i.e.. which is a false statement. Therefore, the equations do not ha the equations do not have a common solution. So, the two rails will not cross each other. EXERCISE 3.3 1. Solve the following pair of linear equations by the substitution method. (1) x+y=14 (ii) s-1=3 x-y=4 s I = 6 (ii) 3x - y = 3 9x - 3y=9 3 2 (iv) 0.2x +0.3y=1.3 0.4x +0.5y=2.3 (v) 2x+√3 y=0 3x 5y = -2 (vi) 2 3 x y13 √3x – V8 y = 0 2 6 67 2. Solve 2x + 3y = 11 and 2x – 4y = - 24 and hence find the value of 'm' for which y=mx+3. 3. Form the pair of linear equations for the following problems and find their solution by