Question

By comparing coefficient of x and y find out the position of lines 4x-3y=8 and 3x-4y-9​

Answer 1

4x - 3y = 8 -------- ( 1 )

3x - 4y = 9 -------- ( 2 )

( 1 ) × 3 = 12x - 9y = 24 -------- ( 3 )

( 2 ) × 4 = 12x - 16y = 36 --------- ( 4 )

( 3 ) - ( 4 ) = 7y = -12

or , y = -12/7

so , ( 1 ) = 4x + 36/7 = 8

or , 4x = 8 - 36/7

or , x = 8 - 36/7/4