SOLUTION: Greg, Sam and Pedro went on shopping. Greg and Sam together spent a total of $17. Sam and Pedro spent $20. Greg and Pedro spent $21. How much did each person spent?

Question 937273: Greg, Sam and Pedro went on shopping. Greg and Sam together spent a total of $17. Sam and Pedro spent $20. Greg and Pedro spent $21. How much did each person spent?

Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
(1)
(2)
(3)
-----------------
Subtract (2) from (3)
(3)
(2)
-------------------

Add (1) and this result

--------------

------------
(2)
(2)
(2)
----------------
Sam spent $8
Greg spent $9
Pedro spent $12
----------------
check:
(1)
(1)

OK
(2)
(2)

OK
(3)
(3)

OK

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