x-(y/4)=-1;(-x/7)+(y/21)=(1/3)

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Solution for x-(y/4)=-1;(-x/7)+(y/21)=(1/3) system of equations: 


  • /| x-(y/4)+1 = 0| y/21-x/7-(1/3) = 0
  • We try to solve the equation: x-(y/4)+1 = 0
  • x-1/4*y+1 = 0 // - x+1
  • -1/4*y = -(x+1) // : -1/4
  • y = (-(x+1))/(-1/4)
  • y = 4*(x+1)
  • We insert the solution into one of the initial equations of our system of equations
  • We get a system of equations:
  • /| (4*(x+1))/21-x/7-(1/3) = 0| y = 4*(x+1)
  • (4*(x+1))/21-x/7-1/3 = 0
  • 1/21*x-1/3+4/21 = 0
  • 1/21*x-1/7 = 0
  • 1/21*x-1/7 = 0 // + 1/7
  • 1/21*x = 1/7 // : 1/21
  • x = 1/7/1/21
  • x = 3
  • We insert the solution into one of the initial equations of our system of equations
  • For y = 4*(x+1): 
  • y = 4*(1+3)
  • y = 4*4
  • y = 16
  • We get a system of equations:
  • /| y = 16| x = 3

 

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