Chapter 1: Q46. (page 12)

Evaluate the expression x = 15
x – 11

Short Answer

Expert verified

The value of expression is 4.

Step by step solution

– Explanation of Subtraction in mathematics

Subtraction is the process of taking away a number from another. It is a primary arithmetic operation that is denoted by a subtraction symbol (–) and is the method of calculating the difference between two numbers.

Example of subtraction

An example of subtraction is: 28 – 5 = 23.

Example: If a = 17 and b = 8, find the value of a – b

To evaluate the expressiona – b, substitute the value of a as 17 and the value of b as 8 and add the numbers as shown below,

$a - b = 17 - 8 = 9$

Evaluate the expression x + 4 when x = 15

To evaluate the expression(x – 11), substitute the value of x as 15 and subtract 11 from 15, the result as shown below,

When x = 15 and the expression x – 11

$\begin{array}{l} x - 11 \\ 15 - 11 = 4 \end{array}$

Thus, the value of the expression is4.

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Evaluate the expression x = 15
x – 11

Short Answer

Step by step solution

– Explanation of Subtraction in mathematics

Example of subtraction

Evaluate the expression x + 4 when x = 15

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Evaluate the expression x = 15x – 11

Short Answer

Step by step solution

– Explanation of Subtraction in mathematics

Example of subtraction

Evaluate the expression x + 4 when x = 15

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Geometry

Logic and Functions

Probability and Statistics

Discrete Mathematics

Mechanics Maths

Theoretical and Mathematical Physics

Study anywhere. Anytime. Across all devices.

Evaluate the expression x = 15
x – 11