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Mathematics 9 Online
OpenStudy (anonymous):

A father is 1 year younger than 3 times the age of his son. The son is 20 years old.

OpenStudy (anonymous):

20*3= x x-1=?

OpenStudy (anonymous):

do what wolf said

OpenStudy (anonymous):

first 20 multiplied by 3

OpenStudy (anonymous):

then subtract one

OpenStudy (anonymous):

exactly

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