-8x-y=16;3x-y=5

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

Solution for -8x-y=16;3x-y=5 system of equations:


  • /| -8*x-y-16 = 0| 3*x-y-5 = 0
  • We try to solve the equation: -8*x-y-16 = 0
  • -8*x-y-16 = 0 / + -8*x-16
  • -y = -(-8*x-16) / * -1
  • y = -8*x-16
  • We insert the solution into one of the initial equations of our system of equations
  • We get a system of equations:
  • /| 3*x-(-8*x)-5+16 = 0| y = -8*x-16
  • 11*x+11 = 0 / - 11
  • 11*x = -11 / : 11
  • x = -11/11
  • x = -1
  • We insert the solution into one of the initial equations of our system of equations
  • For y = -8*x-16:
  • y = -8*(-1)-16
  • y = 1*8-16
  • y = 8-16
  • y = -8
  • We get a system of equations:
  • /| y = -8| x = -1

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