SOLUTION: a student has two test scores. the difference between the scores is 12 and the mean or average of the scores is 80. what are the two test scores?

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Question 405433: a student has two test scores. the difference between the scores is 12 and the mean or average of the scores is 80. what are the two test scores?
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
L - S = 12, and
L + S = 160.
==> 2L = 172
==> L = 86, the higher-score test, and S = 160 - 86 = 74, the low-score test.