Question

4x + 6/y =15
6x - 8/y = 14 by eliminating​

Answer 1

The given system of equation is

4x+y6=15    ..(i)

6x−y8=14 .(ii)

Multiplying equation (i) by 4 and equation (ii) by 3, we get

16x+y24=60 ..(iii)

18x−y24=42 (iv)

Adding (iv) and (iii), we get

34x=102⇒x=3

Putting x=3 in equation (i), we get

12+y6=15⇒y=2

Hence, the solution of the given system of equations is x=3,y=2

Putting x=3,y=2 in y=px−2, we get

2=3p−2⇒p=4/3.

Step-by-step explanation:

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Answer 2

Answer:

x=2 , y=7/6

Step-by-step explanation:

let 1/y=z.

4x+6z=15

6(4x+6z=15)

24x+36z=90---------(1)

6x-8y=14

4(6x-8y=14)

24x-32y=56----------(2)

Subtracting eqⁿ.(1) and eqⁿ.(2) :-

24x-24x+36x+32x=90-56

68x=34

x=2

4(2)+6z=15

15-8=6z

z=7/6

z=1/y=1 / 7/6

y=7/6