SOLUTION: The sum of a student's three scores is 228. If the first is 21 points more than the second, and the sum of the first two is 3 more than twice the third, what was the first score?

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Question 1162618: The sum of a student's three scores is 228. If the first is 21 points more than the second, and the sum of the first two is 3 more than twice the third, what was the first score?
Answer by ikleyn(52878) About Me  (Show Source):
You can put this solution on YOUR website!
.

Let x = the second score.


Then the first score is (x+21),


and twice the third score is  (x + (x+21))-3 = 2x + 18;


    so, the third score is  (x+9).


The sum is 228


    (x+21) + x + (x+9) = 228.


From this point, complete the solution on your own.