2x-12=-y;2x-y=0

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Remember to put linear equations with variables x and y.
for example:
2x+y=8
x+3y=14

Solution for 2x-12=-y;2x-y=0 system of equations: 


  • /| 2*x+y-12 = 0| 2*x-y = 0
  • We try to solve the equation: 2*x+y-12 = 0
  • 2*x+y-12 = 0 // - 2*x-12
  • y = -(2*x-12)
  • y = 12-(2*x)
  • We insert the solution into one of the initial equations of our system of equations
  • We get a system of equations:
  • /| 2*x+2*x-12 = 0| y = 12-(2*x)
  • 4*x-12 = 0 // + 12
  • 4*x = 12 // : 4
  • x = 12/4
  • x = 3
  • We insert the solution into one of the initial equations of our system of equations
  • For y = 12-(2*x): 
  • y = 12-(2*3)
  • y = 12-6
  • y = 6
  • We get a system of equations:
  • /| y = 6| x = 3

 

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