Question

x - 2y = -1 ; 2x - y =7

Answer 1

Answer:

Step-by-step explanation:

• x - 2 y = -1...........(i) x 2  we get

     2 x - 4 y = -2.....(ii)

• 2 x - y = 7.....(iii)

Subtract  (iii) from (ii)  we get,

 ⇒  - 4y + y = -2 + 7

⇒ - 3y = 5

∴ y = - 3/5

• Put the value of y in ...(i)
• x + 6/5 = -1

⇒  x  = - 1 - 6/5

∴  x = - 11/5