Question: 18. How do I solve this? A student scored a total of 258 points on three tests. The total of her first two scores was

18. How do I solve this?

A student scored a total of 258 points on three tests. The total of her first two scores was 80 points more than her third score. She scored 13 points more on her third test than on her second. What were her scores on all three tests

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