Monday 22 February 2016

EXPONENTIAL EQUATIONS - 2




If 2(6m-7) x 3(n+9) = (344) x (293); Find m and n.

solution

equating equal bases;

2(6m-7) =  293

2(6m-7)293

6m - 7 = 93

6m  = 93 + 7

6m  = 100

16m  = 10050
16           63

m = 50/3

again for n we equate equal bases.

3(n+9) = 344

3(n+9) = 344

n + 9 = 44

n = 44 - 9

n = 35

Hence m = 20 and n = 35

TRY THIS...............


If 8(2m-9) x 11(n+40) = (1160) x (823); Find m and n.





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