-3c+5d=-43;-3c-7d=17

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Solution for -3c+5d=-43;-3c-7d=17 system of equations: 


  • /| 5*d-3*c+43 = 0| -3*c-(7*d)-17 = 0
  • We try to solve the equation: 5*d-3*c+43 = 0
  • 5*d-3*c+43 = 0 // - 43-3*c
  • 5*d = -(43-3*c) // : 5
  • d = (-(43-3*c))/5
  • We insert the solution into one of the initial equations of our system of equations
  • We get a system of equations:
  • /| -(7*((-(43-3*c))/5))-3*c-17 = 0| d = (-(43-3*c))/5
  • (-1*7*(3*c-43))/5-3*c-17 = 0
  • 301/5-36/5*c-17 = 0
  • 216/5-36/5*c = 0
  • 216/5-36/5*c = 0 // - 216/5
  • -36/5*c = -216/5 // : -36/5
  • c = -216/5/(-36/5)
  • c = 6
  • We insert the solution into one of the initial equations of our system of equations
  • For d = (-(43-3*c))/5: 
  • d = (-(43-3*6))/5
  • d = (-(43-18))/5
  • d = -25/5
  • d = -5
  • We get a system of equations:
  • /| d = -5| c = 6

 

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