Question 1085263: Jan is 7 years older than Anna. How old are Jan and Anna, respectively, if double the sum of their combined ages is 66? Found 2 solutions by josmiceli, Alan3354:Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = Jan's age now
Let = Anna's age now
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(1)
(2)
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(2)
(2)
Plug (1) into (2)
(2)
(2)
(2)
and
(1)
(1)
(1)
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Jan is 20
Anna is 13
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check:
Jan is 7 years older than Anna.
TRUE
double the sum of their combined ages is 66
OK
You can put this solution on YOUR website! Jan is 7 years older than Anna. How old are Jan and Anna, respectively, if double the sum of their combined ages is 66?
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J - A = 7
J + A = 33
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