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Maths Puzzle
Numerical Ability
the gym is 21 years newer than the auditorium. the gym is also 1/4 as old as the auditorium. how old is each building?
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In any triangle, the sum of the measures of the angles is 180 degrees. In triangle ABC, angle A is three times as large as angle B and also 16 degress larger thans angle c. Find the measure of each angle.
The problem asks me to solve usling any method.
5x+6y=14
y=4x-17
I am not sure which method to use. I tried both but did not come out with the same answer both times! Thanks for your help!