After getting 5 new rocks, George gave half of his rock collection to Susan. If George gave Susan 36 rocks, which equation could
be used to determine how many rocks George started with?
2 answers:
Starts with 67 then adds 5 so he had 72
36 x 2 = 72
72-36 = 36 - 5 = 31
31 rocks to start with
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