Question

solve 4x-6/y=15;6x-6/y=25.hence find p if y=px-2​

Answer 1

Answer:

4x-6/y=15

4x - 15y = 6

multiply it by 6  ---> 24x - 90y = 3      ..............     (i)

6x-6/y=25

6x - 25y = 6

multiply it by 4   ---> 24x + 100y = -24     ..............    (ii)

subtract (i) from (ii)

24x - 90y - 24x + 100y = 36 - 24

10y = 12

y = 6/5

4x - 15*6/5 = 6

4x = 24

x = 6

y = px - 2​

6/5 = 6p - 2

p = 1/10

 

hope it helps...