Math
posted by Katie .
If Leah is 6 yr.s older than sister, Sue, & John is 5 yrs. older than Leah, and the total of their ages is 41. How old is Sue? Still having problems setting the problem up. Have hit a brick wall. Any suggestions?
Have you tried algebra?
Let J = John's age
L = Leah's age = J  5
S = Sue's age = L 6
L + S + J = 41
Next make these substitutions into the above equation to get rid of L and J in that equation. Use
J = 5 + L = S + 11
L = S + 6
Then you can solve for S.
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