2x+3y=11 & 2x-4y=-24

1.	2x+3y=11 & 2x-4y=-24
Answer» 2x+3y=11........ (1)2x-4y=-24........(2) (1)-(2) 7y=35y=5 put in eq. 12x+3(5)=112x=11-152x=-4x=-2 2x + 3y = 11....(1)x = (11 - 3y)/2 2x - 4y = - 24.....(2) Put value of x in eq(2)2(11-3y)/2 - 4y = - 2411 - 3y - 4y = - 2411 - 7y = - 247y = 35y = 35/7y = 5 Put value of y=5 in eq(1)2x + 35 = 112x = 11 - 152x = - 4x = - 4/2x = - 2

Answer»

2x+3y=11........ (1)2x-4y=-24........(2)

(1)-(2)

7y=35y=5

put in eq. 12x+3(5)=112x=11-152x=-4x=-2

2x + 3y = 11....(1)x = (11 - 3y)/2

2x - 4y = - 24.....(2)

Put value of x in eq(2)2*(11-3y)/2 - 4y = - 2411 - 3y - 4y = - 2411 - 7y = - 247y = 35y = 35/7y = 5

Put value of y=5 in eq(1)2x + 3*5 = 112x = 11 - 152x = - 4x = - 4/2x = - 2

Discussion