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Chapter 1: Q. 93 (page 38)

In the following exercise, simplify each expressions.

25-10-3-12

Short Answer

Expert verified

The simplified value is 6.

Step by step solution

01

Step 1. Concept Used.

According to subtraction property, the subtraction of a number is equal to the addition of its opposite. This can be expressed as follows.

a-b=a+-b

02

Step 2. Simplification inside parentheses.

Add the opposite of 12 with 3 inside the parentheses.

25-10-3-12=25-10--9
03

Step 3. Simplification inside brackets.

Add the opposite of the opposite of 9 with 10 inside the brackets.

25-10--9=25-10+9=25-19

04

Step 4. Calculation.

Add the opposite of 19 with 25.

25-19=25-19=6

05

Step 5. Conclusion.

The simplified value of the given expression is 6.

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