contestada

Jack is 8 years younger than twice Matt’s age. If the sum of their ages is 76, how old is Jack?

Respuesta :

J=2M-8
J+M=76

(2M-8)+M=76
3M-8=76
3M=84
M=28

J=2M-8
J=2(28)-8
J=56-8
J=48 years old