SOLUTION: 3 years ago A's age was double of B.
7years later the sum of their united ages will be 83 years.
Today the age of A is....????
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Question 919024: 3 years ago A's age was double of B.
7years later the sum of their united ages will be 83 years.
Today the age of A is....????
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
years ago 's age was of .
.........eq.1
years later the sum of their united ages will be years.
.........eq.2
solve the system:
.........eq.1
.........eq.2
___________________________
.........eq.1 solve for
.......substitute in eq.2
.........eq.2..solve for
find
check:
years ago 's age was
years ago 's age was
is of -true
years later the sum of their united ages will be years.
years later will be
years later will be
and -true
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