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Answer to Question #19654 in Trigonometry for Kristen Woods

Question #19654
In last night’s basketball game, Sally scored 9 less than twice what Lucy scored. The sum of their scores is 27. How many points did Sally and Lucy make individually?
Expert's answer
the equations are
2*L - S = 9
where S is Sally score and L is Lucy score. Hence
S = 2L-9
L + 2L - 9 = 27
L=12, S=27-12 = 15
Lucy scored 12, Sally scored 15

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