Question

slove
2x-y = 5
x+3y=6
how to slove this ​

Answer 1

Answer:

// Solve equation [2] for the variable  x  

 

 [2]    x = -3y + 6

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

  [1]    2•(-3y+6) - y = 5

  [1]     - 7y = -7

// Solve equation [1] for the variable  y  

  [1]    7y = 7  

  [1]    y = 1  

// By now we know this much :

   x = -3y+6

   y = 1

// Use the  y  value to solve for  x  

   x = -3(1)+6 = 3

{x,y} = {3,1}

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

2x-y=5 -----(1)

x+3y=6-----(2)

multiplying by 2 eq.. (2)

+2x-y=+5

+2x+6y=+12

- - -

----------------------

-7y= -7

(y=1)

PUTTING Y IN EQ (1)

SO (X=3)