7x-9;7x+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 7x-9;7x+7 system of equations: 


  • /| 7*x-9 = 0| 7*x+7 = 0
  • We try to solve the equation: 7*x-9 = 0
  • 7*x-9 = 0 // + 9
  • 7*x = 9 // : 7
  • x = 9/7
  • We insert the solution into one of the initial equations of our system of equations
  • We get a system of equations:
  • /| 7*(9/7)+7 = 0| x = 9/7
  • 9/7*7+7 = 0
  • 7+9 = 0
  • 16 = 0
  • The system of equations does not have any solution

 

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