√99以上 5/x-1 1/y-2=2 6/x-1-3/y-2=1 by substitution method 158539
First Order Linear Differential Equations Solve by substitution method x 2y = 1 and 2x 3y = 12 Get the answer to this question and access a vast question bank that is tailored for students Login the solution of the given equation is x = 3, y = – 2 Was this answer helpful?Solution Let 1 x y = u and 1 x y = v Then, the given system off equations becomes 5u 2v = 1 (i) 15u 7v = 10 (ii) Multiplying equation (i) by 7, and equation (ii) by 2, we get 35u 14v = 7 (iii) 30u 14v = (iv) Adding equation (iii) and equation (iv), we get ⇒ 35 u 360 u = 7 => 65u = 13 ⇒ u = 13 65 = 1 5 5/x-1 1/y-2=2 6/x-1-3/y-2=1 by substitution method