Question

If x+y=6,x-y=10 then find y

Answer 1

Answer:

x2 -6 - 10 x =0

Step-by-step explanation:

// Solve equation [2] for the variable  x  

 

 [2]    x = y + 10

// Plug this in for variable  x  in equation [1]

  [1]    (y +10) + y = -6

  [1]    2y = -16

// Solve equation [1] for the variable  y  

  [1]    2y = - 16  

  [1]    y = - 8  

// By now we know this much :

   x = y+10

   y = -8

// Use the  y  value to solve for  x  

x2 -6 - 10 x =0

Answer 2

Answer:

x + y = 6

x - y = 10

∴ y = -2

( See the attachment for the detailed solution :)