SOLUTION: find the value of a when the arithmetic mean of a+7 and a+3 is 3a+9.

SOLUTION: find the value of a when the arithmetic mean of a+7 and a+3 is 3a+9.

Algebra.Com

Question 1038339: find the value of a when the arithmetic mean of a+7 and a+3 is 3a+9.
Answer by josgarithmetic(39626) (Show Source): You can put this solution on YOUR website!

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