Question

solve 43x + 37y = 117

Answer 1

Answer:

answer is down

Step-by-step explanation:

/ Solve equation [2] for the variable  y  

 

 [2]    37y = -43x + 117

 [2]    y = -43x/37 + 117/37

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

  [1]    37x + 43•(-43x/37+117/37) = 123

  [1]    -480x/37 = -480/37

  [1]    -480x = -480

// Solve equation [1] for the variable  x  

  [1]    480x = 480  

  [1]    x = 1  

// By now we know this much :

   x = 1

   y = -43x/37+117/37

// Use the  x  value to solve for  y  

   y = -(43/37)(1)+117/37 = 2  

Solution :

{x,y} = {1,2}