Solving Equations.ppt

Solving Equations.ppt

• 1.
  A QUICK REVIEW OFALGEBRA Jim Smith JCHS
• 2.
  Follow These Steps WhenSolving Equations Simplify Both Sides Get Variables On One Side Cancel The Add And Subtraction Cancel The Mult And Division
• 3.
  Simplify Both Sides OfThe Equal Sign ( This May Take Several Steps) Distributive Property Combine Like Terms Removing Fractions 2x = 4 (x – 8) + 6x
• 4.
  Get Variables OnOne Side Of The Equation If The Equation Has Variables On Both Sides Of The Equal Sign, Cancel Out All Variables On One Side. 3x + 5 = 5x - 7
• 5.
  Cancel Any AdditionOr Subtraction With The Variable Performing The Opposite Operation With The Same Number Will Cancel It. Do This To Both Sides. 2x + 7 = 21 7 – 3x = 19
• 6.
  Be Neat…. ShowYour Work 2x + 5 = 5x - 19 2x + 5 - 2x = 5x - 19 - 2x 5 = 3x - 19 5 + 19 = 3x - 19 + 19 24 = 3x 24 = 3x 3 3 8 = x
• 7.
  5x + 2x= 4 ( x + 3 ) + 6 7x = 4 ( x + 3 ) + 6 7x = 4x + 12 + 6 7x = 4x + 18 7x – 4x = 4x + 18 – 4x 3x = 18 3x = 18 3 3 X = 6
• 8.
  5x – 3 3 =9 5x – 3 3 = 9 3 3 5x – 3 = 27 5x – 3 +3 = 27 +3 5x = 30 5x = 30 5 5 X = 6 END
• 10.
  Given Equation 3(x+2) =x-8 Cup 1
• 11.
  Simplify Both Sides Cup2 3x+6 = x-8 3(x+2) = x-8
• 12.
  Get Variables OnOne Side 3x+6-x = x-8-x 2x+6 = -8 Cup 3 3x+6 = x-8
• 13.
  Cancel The Addor Subtraction 2x+6-6 = -8-6 2x = -14 Cup 4 2x+6 = -8
• 14.
  Cancel The MultAnd Division 2x = -14 2x = -14 2 2 x = -7 Cup 5
• 15.
  3(x+2) = x-8 3(x+2)= x-8 3x+6 = x-8 3x+6 = x-8 3x+6-x = x-8-x 2x+6 = -8 2x+6 = -8 2x+6-6 = -8-6 2x = -14 2x = -14 2x = -14 2 2 x = -7
• 16.
  Given Equation Simplify BothSides Variables On One Side Cancel Add or Sub Cancel Mult And Div