Question

Sheree is 4 times as old as bejamin. Sheree is 72 years old , how old is Benjamin

Answer 1

Sheree is 4x

Benjamin is x

If Sheree is 72 years old, 4x=72:

4x=72

divide by four on each side

x=18

Benjamin is 18 years old.

Answer 2

72=4x
72(1/4)=4x(1/4) multiplicative inverse
18=x
x=18

Benjamin is 18 years old