-4x-4y=8;8y=-8x-16

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

Solution for -4x-4y=8;8y=-8x-16 system of equations: 


  • /| -4*x-(4*y)-8 = 0| 8*y-(-8*x)+16 = 0
  • We try to solve the equation: -4*x-(4*y)-8 = 0
  • -4*x-4*y-8 = 0 // + -4*x-8
  • -4*y = -(-4*x-8) // : -4
  • y = (-(-4*x-8))/(-4)
  • y = (8-(-4*x))/(-4)
  • We insert the solution into one of the initial equations of our system of equations
  • We get a system of equations:
  • /| 8*((8-(-4*x))/(-4))-(-8*x)+16 = 0| y = (8-(-4*x))/(-4)
  • (8*(4*x+8))/(-4)+8*x+16 = 0
  • 16-16 = 0
  • 0 = 0
  • The system of equations has infinitely many solutions

 

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