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1 vote
If tan 72=12/X find X

2 Answers

2 votes
72= 12/x
12/x=72
12=72x
get rid of the fractions in 12/x=72 by multiplying both sides by the lowest common denominator
72x=12
move factors not having x from the left side of the equation

so X= 1/6
4 votes
multiply 72 by 12 and you'll get your answer

User Cflewis
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