-9x-9y;x+y

Simple and best practice solution for -9x-9y;x+y. Check how easy it is, to solve this system of equations and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

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

Solution for -9x-9y;x+y system of equations: 


  • /| -9*x-(9*y) = 0| x+y = 0
  • We try to solve the equation: -9*x-(9*y) = 0
  • -9*x-9*y = 0 // + -9*x
  • -9*y = -(-9*x) // : -9
  • y = (-(-9*x))/(-9)
  • y = -x
  • We insert the solution into one of the initial equations of our system of equations
  • We get a system of equations:
  • /| x-x = 0| y = -x
  • The system of equations has infinitely many solutions

 

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