Question 352425: twice lisa's age is 11 more than jessica's age. the sum of lisa's age is twice jessica's age is 43. how old are the girls? Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! let jessica be x
lisa be y
2y=x+11
2y-x=11....................1
y+2x= 43...................2
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multiply (1) by 2 and add it to (2)
4y-2x=22
add
5y=43+22
5y=65
/5
y=13 lisa's age
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plug value of y in (1)
26-x=11
26-11=x
x= 15 jessica's age
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m.ananth@hotmail.ca
