Framing an Algebraic Expression


 
 
Concept Explanation
 

Framing an Algebraic Expression

An algebraic expression is a mathematical phrase that can contain ordinary numbers, variables (like x or y), and operators (like add, subtract, multiply, and divide).

For example, 2(3 + 8) is a numeric expression.

Note: Algebraic expressions include at least one variable and at least one operation (addition, subtraction, multiplication, division).

For example, 2(x + 8y) is an algebraic expression.

Illustration:  Write an expression of the following:

  • 12 subtracted from z
  • 25 added to r
  • p multiplied by 16
  • y divided by 8
  • m multiplied by -9
  • y multiplied by 10 and then 7 added to the product
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    Sample Questions
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    Question : 1

    If y represents any number,write expressions for:

    5 times a number

    Right Option : D
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    Explanation
    Question : 2

    If y represents any number,write expressions for:

    8 more than that number

    Right Option : C
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    Explanation
    Question : 3

    Equation for the statement : 'thrice the length of a room is 340 metres'.

    Right Option : B
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    Explanation
     
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