Mathematics, 26.09.2019 13:00 hannahmorgret7811

The sum of two numbers is 39. the second number is 3 more than three times the first number. let x represent the first number and let y represent the second number. what is the value of the first number? 4 5 6 9

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The sum of two numbers is 39. the second number is 3 more than three times the first number. let x r...