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Two times michaels age plus three times Kathys age is 47. Kathy is also four years older than Michael. How old is Kathy?

Two times michaels age plus three times Kathys age is 47. Kathy is also four years older than Michael. How old is Kathy?
asked 142k views
2 votes
Two times michaels age plus three times Kathys age is 47. Kathy is also four years older than Michael. How old is Kathy?

asked
User Cortes
by
7.8k points

2 Answers

4 votes
i think kathys age is 11

answered
User Nxu
by
8.5k points
6 votes
Michael is m
Kathy is k

2m+3k=47
m+4=k

2m+3(m+4)=47
2m+3m+12=47
5m+12=47
5m=35

m=7
k=11
answered
User Douwe Van Der Meij
by
9.0k points
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