SOLUTION: The first three digits of Sophie�s telephone number are 279. If 70 is added to Sophie�s age, this sum is 5939 less than three times the number formed by the last four digits of Sop

Question 271718: The first three digits of Sophie�s telephone number are 279. If 70 is added to Sophie�s age, this sum is 5939 less than three times the number formed by the last four digits of Sophie�s phone number. If Sophie is 30 years old, what is her telephone number?
Answer by dabanfield(803) (Show Source): You can put this solution on YOUR website!
The first three digits of Sophie�s telephone number are 279. If 70 is added to Sophie�s age, this sum is 5939 less than three times the number formed by the last four digits of Sophie�s phone number. If Sophie is 30 years old, what is her telephone number?
0 solutions
Let x be the last four digits of Sophie's phone number. Then
30 + 70 = 3*x - 5939
3x = 100 + 5939
3x = 6039
x = 2013
The number then is 279-2013.
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