Translate the phrase into an algebraic expression. A number x decreased by $21$
A) $- ( x + 21 )$
B) $\frac { 21 } { x }$
C) $\frac { x } { 21 }$
D) $21 - x$
E) $x - 21$

Name: Translate the phrase into an algebraic expression. A number x decreased by $21$ A) $- ( x + 21 )$ B) $\frac { 21 } { x }$ C) $\frac { x } { 21 }$ D) $21 - x$ E) $x - 21$
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Question

Quizplus · Accepted Answer

The phrase "A number x decreased by 21" can be written as "x - 21". Therefore, the best choice is E, which matches this expression.

Translate the Phrase into an Algebraic Expression 212121 A) −(x+21)- ( x + 21 )−(x+21)

Translate the Phrase into an Algebraic Expression $21$ A) $- ( x + 21 )$