SOLUTION: four times a number added to 9 times the number equals 39

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Question 260427: four times a number added to 9 times the number equals 39
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
4X+9X=39
13X=39
X=39/13
X=3 ANS.
PROOF:
4*3+9*3=39
12+27=39
39=39