So like, aku tgh study math uwdizh3dlqw susah gila. Stress gila. But aku ada dpat one solution ni. ahak ahak. There you go..

example:

In an I.Q test, 4 marks are given for every correct answer and 2 marks are deducted for every wrong answer. If crystal answered 30 questions and scored 84 marks, how many of her answers were correct?

Solution

1. Understand the problem.
    30 questions -> Total marks scored 84
2.Identify the unknowns quantity
   Let 'p' represent the numberr of correct answers.
3. Form the equation
    *Total marks for correct answers --> 4p
    *Numbers of wronganswers --> 30-p
    *Total marks for wrong answers --> -2(30-p) ( yang ''-2'' ada ''-''  sbb deducted stands for ''-'' kan)
    *Total marks obtained = 84 --> 4p=(-2)(30-p) = 84
4.Solve the equation
   4p + (-2) (30 - p) = 84
   4p - 60 + 2p = 84
   6p - 60 = 84
           6p = 84 + 60
                = 144
             p = 144/6
                = 24

:) Itulah caghe nya ahak ahak. happy trying! :D kalau tak paham, pandai pandai lah :3
             

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