Solve by substitution
14x-35=7y
-25-6x=5y

Question

Solve by substitution
14x-35=7y
-25-6x=5y

anonymous · Answer

[1]    14x = 7y + 35

  [1]    x = y/2 + 5/2

 // Plug this in for variable  x  in equation [2]

   [2]    -6•(y /2+5/2) - 5y = 25


   [2]     - 8y = 40

// Solve equation  [2]  for the variable   y  

   [2]    8y = - 40 

   [2]    y = - 5 

// By now we know this much : 

    x = y/2+5/2
    y = -5

// Use the  y value to solve for  x  

    x = (/2)(-5)+5/2 = 0 
Solution :

 {x,y} = {0,-5}

anonymous · Answer

{x,y} = {0,-5}

anonymous · Answer

thank you so much. do you think you can help me with another?