Weegy: One number is 4 more than another, and their sum is 60. [ What is the smaller number? If x=the larger number and y=smaller number, then which of the following systems could be used to solve the problem?
x+y=60 and -x+y=4;
x+y=60 and x-y=4 or x+y=60 and x+y=4 ] (More)

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