Answer :

stradlater
[tex] \frac{x}{3} [/tex] - 1

quotient is the answer you get when you divide, a number and three is understood as x ÷ 3 , or [tex] \frac{x}{3} [/tex]

decreaed by one, is understood as the first part of the expression has 1 subracted from it.
let the number be x
the quotient of the number and three : x/3
when it is decreased by 1 : (x/3) - 1

so the answer will be (x/3) - 1

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