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Mathematics 11 Online
OpenStudy (anonymous):

the 2nd of 3 numbers is 4times the 1st number. The 3rd number is 12 less than the 1st. Find three numbers given that their sum is 42

OpenStudy (anonymous):

1st:9,2nd:36,3rd:3

OpenStudy (anonymous):

wait that is wrong

OpenStudy (anonymous):

let the first number be x and express each in terms of x...

OpenStudy (anonymous):

third is -3

OpenStudy (anonymous):

then x + 4x + (x-12) =42

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