-7x-2y=-34;4x-3y=7

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for example:
2x+y=8
x+3y=14

Solution for -7x-2y=-34;4x-3y=7 system of equations: 


  • /| 34-7*x-(2*y) = 0| 4*x-(3*y)-7 = 0
  • We try to solve the equation: 34-7*x-(2*y) = 0
  • 34-7*x-2*y = 0 // - 34-7*x
  • -2*y = -(34-7*x) // : -2
  • y = (-(34-7*x))/(-2)
  • y = (34-7*x)/2
  • We insert the solution into one of the initial equations of our system of equations
  • We get a system of equations:
  • /| 4*x-(3*((34-7*x)/2))-7 = 0| y = (34-7*x)/2
  • (-1*3*(34-7*x))/2+4*x-7 = 0
  • 29/2*x-51-7 = 0
  • 29/2*x-58 = 0
  • 29/2*x-58 = 0 // + 58
  • 29/2*x = 58 // : 29/2
  • x = 58/29/2
  • x = 4
  • We insert the solution into one of the initial equations of our system of equations
  • For y = (34-7*x)/2: 
  • y = (34-7*4)/2
  • y = (34-28)/2
  • y = 6/2
  • y = 3
  • We get a system of equations:
  • /| y = 3| x = 4

 

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