135x+45y=-11;81x-13=75y

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Solution for 135x+45y=-11;81x-13=75y system of equations: 


  • /| 135*x+45*y+11 = 0| 81*x-(75*y)-13 = 0
  • We try to solve the equation: 135*x+45*y+11 = 0
  • 135*x+45*y+11 = 0 // - 135*x+11
  • 45*y = -(135*x+11) // : 45
  • y = (-(135*x+11))/45
  • We insert the solution into one of the initial equations of our system of equations
  • We get a system of equations:
  • /| 81*x-(75*((-(135*x+11))/45))-13 = 0| y = (-(135*x+11))/45
  • (-1*75*(-135*x-11))/45+81*x-13 = 0
  • 306*x-13+55/3 = 0
  • 306*x+16/3 = 0
  • 306*x+16/3 = 0 // - 16/3
  • 306*x = -16/3 // : 306
  • x = -16/3/306
  • x = -8/459
  • We insert the solution into one of the initial equations of our system of equations
  • For y = (-(135*x+11))/45: 
  • y = (-(11-8/459*135))/45
  • y = (-(11-40/17))/45
  • y = -147/17/45
  • y = -49/255
  • We get a system of equations:
  • /| y = -49/255| x = -8/459

 

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