Question 1201471: peter is twice as old as sam. if 8 is subtracted from sam's age and 4 is added to peter age, peter will then be four time as old as sam Answer by ikleyn(52803) (Show Source):
You can put this solution on YOUR website! .
Peter is twice as old as Sam. If 8 is subtracted from Sam’s age and 4 is added to Peter’s age,
Peter will then be four times as old as Sam. Find their ages.
~~~~~~~~~~~~~~~~~
Sam = x years old.
Peter = 2x years old.
Equation
8 is subtracted from Sam’s age 4 is added to Peter’s age
4 * (x-8) = (2x+4)
Simplify and find x
4x - 32 = 2x + 4
4x - 2x = 32 + 4
2x = 36
x = 36/2 = 18
ANSWER. Sam is 18 years old. Peter is 2*18 = 36 years old.