Systems of eq

• ELIMINATION:

  Naay ma eliminate na term

  get x

  sub x to one of the systems to get y
• SUBST.

  y= 5-2x

  4x+3y =13

  sub y to 2nd eq to get x

  sub x to eq to get y

  if no y val then set one of the eq to y form

  case3. just equate

  y= 3x+2

  y= 7x-6
• graph.

  graph separate eq

  they have a point of intersection