Interpreting Algebraic Expressions
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Common Expressions, Equivalents, and Examples
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English Expression
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Variable
Assignment
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Algebraic
Expression
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English Example
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Algebraic
Equivalent
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8 more than a
number
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Let n =
Number
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n+8
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The length is 8 more than
the width.
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L=W+8
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a number plus 8
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Let n =
Number
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n+8
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The length equals the
width plus 8.
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L=W+8
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exceeds number by 8
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Let n =
Number
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= n+8
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The length exceeds the
width by 8.
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L=W+8
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A number increased
by 8
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Let n =
Number
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n+8
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A number increased by 8
is 42.
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N+8 = 42
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A number decreased
by 8
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Let n =
Number
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n-8
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A number decreased by 8
is 42.
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N-8 = 42
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is or equals
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=
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The length is 42.
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L=42
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8 less than a number
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Let n =
Number
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n -8
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The length is 8 less than
the width.
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L=W-8
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8 less than a number
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Let n =
Number
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n -8
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The length 8 iswidth by
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a number plus 8
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The length exceeds the
width by 8.
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product of Item1 and
Item2
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Let X = Item1
Let Y = Item2
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X*Y
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Area is the product of the
length and the width.
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A=LW
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