Answer:
81, 89, 91
Explanation:
You want to know Aura's three exam scores if their average was 87, the second was 8 point higher than the first, and the third was 2 points higher than the second.
Score
Let x represent the first exam score. Then x+8 and x+10 will be the other two scores. Their average is ...
(x +(x +8) +(x +10))/3 = 87
x +6 = 87 . . . . . . . . simplify
x = 81 . . . . . . . . subtract 6
x +8 = 89
x +10 = 91
Aura's three exam scores were 81, 89, and 91.
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