5x-y=16;x+y=8

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

Solution for 5x-y=16;x+y=8 system of equations: 


  • /| 5*x-y-16 = 0| x+y-8 = 0
  • We try to solve the equation: 5*x-y-16 = 0
  • 5*x-y-16 = 0 // - 5*x-16
  • -y = -(5*x-16) // * -1
  • y = 5*x-16
  • We insert the solution into one of the initial equations of our system of equations
  • We get a system of equations:
  • /| x+5*x-16-8 = 0| y = 5*x-16
  • 6*x-24 = 0 // + 24
  • 6*x = 24 // : 6
  • x = 24/6
  • x = 4
  • We insert the solution into one of the initial equations of our system of equations
  • For y = 5*x-16: 
  • y = 4*5-16
  • y = 20-16
  • y = 4
  • We get a system of equations:
  • /| y = 4| x = 4

 

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