(1) The following is known about three numbers: Three times the first number plus the second number plus twice the third number is 5.If 3 times the second number is subtracted from the sum of the first number and 3 times the third number,the result is 2.If the third number is subtracted from 2 times the first number and 3 times the second number,the result is 1. (a) Write a system of equations to match the description of the information given. (b) Find the numbers using ??????′? ????.

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