y=2x+3;2y=8x-2

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

Solution for y=2x+3;2y=8x-2 system of equations: 


  • /| y-(2*x)-3 = 0| 2*y-(8*x)+2 = 0
  • We try to solve the equation: y-(2*x)-3 = 0
  • y-2*x-3 = 0 // + -2*x-3
  • y = -(-2*x-3)
  • y = 3-(-2*x)
  • We insert the solution into one of the initial equations of our system of equations
  • We get a system of equations:
  • /| 2*(3-(-2*x))-(8*x)+2 = 0| y = 3-(-2*x)
  • 2*(2*x+3)-8*x+2 = 0
  • 2-4*x+6 = 0
  • 8-4*x = 0
  • 8-4*x = 0 // - 8
  • -4*x = -8 // : -4
  • x = -8/(-4)
  • x = 2
  • We insert the solution into one of the initial equations of our system of equations
  • For y = 3-(-2*x): 
  • y = 3-(-2*2)
  • y = 3+4
  • y = 7
  • We get a system of equations:
  • /| y = 7| x = 2

 

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