Quantitative Methods - Unit 1 > Linear Equations
 
 
Introduction l Solving Equations l Examples l Summary

Examples 1
 

Solve
  1. x + 5 = 7
    Answer
    Take 5 from both sides
    x = 7 - 5
    x = 2

  2. a - 2 = 10
    Answer
    Add 2 to both sides
    a = 10 + 2
    a = 12

  3. 2x = 6
    Answer
    Divide both sides by 2
    x = 3
  1. 3x - 2 = 10
    Answer
    Add 2 to both sides
    3x = 12
    Divide both sides by 3
    x = 4

  2. 2x + 1 = 11
    Answer
    Take 1 from both sides
    2x = 10
    Divide both sides by 2
    x = 5

  3.  

    y

     = 3

    2
    Multiply both sides by 2
    y = 6