Question

p=4x+2/5x-8 change the subject of the formula to x and find x if p =5.​

Answer 1

Answer:

2

Step-by-step explanation:

• p=4X+2/5X-8. 5 =4X+2/5X-8. 25X-40 =4X+2 25X =4X+40+2. 25X=4X+42. 25X-4X=42. 21X=42. X=42/21 , X=2

Answer 2

Answer:

p={(4x+2)/(5x-8)}

(5x-8)p =(4x-2)

5xp - 8p = 4x -2

5xp - 4x = 8p -2

x(5p-4) = 8p-2

x= {(8p-2)/(5p-4)}

putting value of p =5 then we get

x= 38/21