Edexcel IGCSE Maths 复习笔记 2.11.2 Solving Linear Equations

Edexcel IGCSE Maths 复习笔记 2.11.2 Solving Linear Equations

Solving equations…

… is just like rearranging formula so we’ll use exactly the same method …

GROF GROBLET FIND ANSWER!

  • This is a mnemonic (way of remembering something) developed to deal with everything except roots and powers (see Rearranging Formulae – Extra Bits notes for that) and can also be used for rearranging formulae…
  1. GROF – Get Rid Of Fractions
  2. GROB – Get Rid Of Brackets
  3. LET – Lump Everything Together (or Let’s Examine Terms)
  4. FIN – Factorise If Necessary
  5. D – Divide 

    ANSWER!

Worked Example

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