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Marta_Voda [28]
3 years ago
13

Y = - x + 4 y = 2x - 8​

Mathematics
2 answers:
natulia [17]3 years ago
5 0

Answer:

{y,x} = {0,4}

Step-by-step explanation:

// Solve equation [2] for the variable  y  

 

 [2]    y = 2x - 8

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

  [1]    (2x-8) + x = 4

  [1]    3x = 12

// Solve equation [1] for the variable  x  

  [1]    3x = 12  

  [1]    x = 4  

// By now we know this much :

   y = 2x-8

   x = 4

// Use the  x  value to solve for  y  

   y = 2(4)-8 = 0

Gnom [1K]3 years ago
5 0
^^ the person above had the same answer as me! have a good day!
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