Pls solve 3(i) question fast by substitution method ....pls solve fast Pls solve 3(i) question fast by substitution method ....pls solve fast Hencv, tn the following systems of simultaneous linear equations by the (t) X + y 14 4 (iv) 3x — 5y (iii) 2.r + 3y = 9 3x + 4y = 5 (i) a + 3b 5 x -20=12y 7a-8b=6 5x-20=8y. 4 mx — ny = m2 + n2 (it) x + y = 2m 5 Solve 2x + y = 35, 3x + 4y = 65. Hence, find the value of — . Solve the simul Share with your friends Share 0 Varun Rawat answered this The given equations are :2x - 3y4 = 3 .....15x - 2y - 7 = 0 .......2From 1, we get 8x - 3y4 = 3⇒8x = 12 + 3y⇒x = 12+3y8 ......3Put the value of x in 2, we get5×12+3y8 - 2y - 7 = 0⇒60+15y-16y-56 = 0⇒-y = -4⇒y = 4Put the value of y in 3, we getx = 12+3×48 = 3 1 View Full Answer Sreeja answered this 8x-3y=12 x=(12+3y)/8 ...(1) 5x-2y=7 ...(2) Putting the value of x of Eq.(1) in Eq.(2) 5((12+3y)/8)-2y=7 (60+15y)/8-2y=7 (60+15y-16y)/8=7 60-y=8*7 60-y=56 -y=56-60 -y=-4y=4 Putting the value of y in Eq.(1) x=(12+3*4)/8 x=(12+12)/8 x=24/8x=3 Hence, x=3 and y=4. Hope this answer helped you. 0
