book Maths Puzzle Numerical Ability

-2(5u+v)-v

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book Other Question

A certain clock marks every hour by striking a number of times equal to the hour and the time required for a stroke is exactly equal to the time interval between strokes. At 6:00 t Use the appropriate property of equality to solve each equation
7r/12 = -14


1/3 s + 7/9 = 4/3 s