JessaC105321 JessaC105321

29-10-2022
Mathematics

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Enrique is 7 years older than Erin. In 3 years the sum of their ages will be 57. How old is Enrique now?

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JayceeB363981 JayceeB363981

29-10-2022

ok

Enrique = e

Erin = n

e = n + 7

e + n = 57 - 6

e + n = 51

Solve by substitution

n + 7 + n = 51

2n = 51 - 7

2n = 22

n = 22/2

n = 11

e = n + 7

e = 11 + 7

e = 18

Right now Enrique is 18 years old

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