Q10 of 55 Page 37

If , then x is equal to



Now by cross multiplying,


(23x-1 + 10) × 1 = 6 × 7= 42


23x-1 = 42-10


23x-1 = 32


23x-1 = 25


3x-1 = 5


3x = 6


= 2


Therefore x = 2

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