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the present age of cheruby is 3 years more than three times the age of emmylou. three years from now , cheruby's age will be 10 years more than twice the age of emmylou. find the present age of emmylou

Sagot :

Mlcparra16id
Let the present age of Cheruby be c and Emmylou's be e.

c = 3e + 3

c + 3 = 2 (e + 3) + 10
(3e + 3) + 3 = 2e + 6 + 10
3e + 6 = 2e + 16
e = 10

Emmylou is 10 years old at present.