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Chapter 1: Q. 25E (page 36)

Evaluate the expression when m=-6.

鈥�4-m

Short Answer

Expert verified

The value of the expression is 10.

Step by step solution

01

Step 1. Apply the concept of subtraction

To add two numbers with similar signs, add their absolute values and keep the similar sign with the resulting number.

To add two numbers with opposite signs, subtract the absolute value of smaller number from absolute value of larger number and keep the sign of larger number with the resulting number.

02

Step 2. Example for subtraction of numbers

The difference of the numbers 7-3=4 is positive because the larger number is positive as well.

And the difference of the numbers 3-7=-4 is negative because the larger number is negative as well.

03

Step 3. Evaluate the expression

To evaluate the expression 4-m, substitute -6for m and simplify further as shown below

4-m=4--6

To subtract -6, add its opposite 6 and simplify further as shown below

4鈭�m=4鈭�鈭�6=4+6=10

Thus, the value of the expression is 10.

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