8y-y=11;x+y=7

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

Solution for 8y-y=11;x+y=7 system of equations: 


  • /| 8*y-y-11 = 0| x+y-7 = 0
  • We try to solve the equation: 8*y-y-11 = 0
  • 7*y-11 = 0 // + 11
  • 7*y = 11 // : 7
  • y = 11/7
  • We insert the solution into one of the initial equations of our system of equations
  • We get a system of equations:
  • /| x+11/7-7 = 0| y = 11/7
  • x-38/7 = 0 // + 38/7
  • x = 38/7
  • We insert the solution into one of the initial equations of our system of equations
  • For y = 11/7: 
  • y = 11/7
  • We get a system of equations:
  • /| y = 11/7| x = 38/7

 

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