Answers edited by Xodiac M.

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• How do you solve the following system?: #2x +3y =5 , 8x +5y = -4#
  
• What is the equation of the line which is perpendicular to #2x+y=-4# which passes through the point #(2,-8)?#
  
• Question #03596
  
• How do you solve #11v ^ { 2} - 7v + 19= 9#?