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Please check if the answer for Question 24 is x = 1 and y = 0?   If not, please provide the answer key.  

Question 25:

(a)   32x+4 x 5x-2  =  33x x 52x

           32x+4                         52x

           ——-           =        ———-

            33x                                  5x-2

           32x+4-3x       =        52x-x+2

            34-x               =        5x+2

            34 3-x              =        5x 52

            5x 3x             =      34 /  5  = 81 / 25

              15x                 =      3.24

(b)         x log 15           =     log 3.24

               x                 =  log 3.24  / log 15   =  0.434 ( to 3 dec place)

1 Reply 1 Like

Thanks Sushi 88, Adwin’s answer is correct.  Your answer for q25 is correct too.

1 Reply 0 Likes

Thank you for letting me know.

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1 Reply 1 Like

Thanks Adwin

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