Problema Solution
three times the sum of 11 and a number is 20. what is the number?
Answer provided by our tutors
let 'x' be the number
3*(11 + x) = 20
33 + 3x = 20
3x = 20 - 33
x = -13/3
x = - 4 1/3
the number is - 4 1/3.
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