If three times the smaller of consecutive integers is added to four times the larger, the result is 39

let x and (x+1) represent  the two consecutive integers x + 4(x+1) = 39

  5x + 4 = 39

    5x = 35

     x = 7 is the smaller.  7,8 the two consecutive integers

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answer: 180

step-by-step explanation:

12-2=10

20-2=18

18x10=180