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cestrela7 [59]
2 years ago
14

I need an Answer Immediately,pls!!!!!!

Mathematics
2 answers:
Leya [2.2K]2 years ago
7 0

Answer:

See below.

Step-by-step explanation:

41.5 + 5x = 52.5\\5x = 11\\x = 2.2

Sladkaya [172]2 years ago
3 0

Answer:

41.5+5x=52.55x=11x=2.2

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Solve the system by graphing.
igor_vitrenko [27]

Answer:

Hi There the correct answer is {x,y} = {-1,-10}  

 

System of Linear Equations entered :

  [1]    3x - y = 7

  [2]    4x - 2y = 16

Graphic Representation of the Equations :

   y + 3x = 7        -2y + 4x = 16  

 

 

Solve by Substitution :

// Solve equation [1] for the variable  y  

 

 [1]    y = 3x - 7

// Plug this in for variable  y  in equation [2]

  [2]    4x - 2•(3x-7) = 16

  [2]    -2x = 2

// Solve equation [2] for the variable  x  

  [2]    2x = - 2  

  [2]    x = - 1  

// By now we know this much :

   x = -1

   y = 3x-7

// Use the  x  value to solve for  y  

   y = 3(-1)-7 = -10  

Solution :

{x,y} = {-1,-10}  

Hope it helps!

8 0
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