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Chapter 1: Q. 6E (page 18)

Evaluate the expression.

18+127-2

Short Answer

Expert verified

The value of the expression is6.

Step by step solution

01

Step 1. Order of operations

To evaluate any expression involving more than one operation, follow the below order of operations:

  • First evaluate expressions inside grouping symbols like parentheses ( ) or brackets [ ].
  • Evaluate the exponents.
  • Perform Multiplication and division from left to right.
  • Perform addition and subtraction from left to right.
02

Step 2. Simplify expressions on numerator and denominator

In order to evaluate the given expression, first simplify the numerator and denominator expression and then divide the resulting numbers as shown below

18+127鈭�2=307鈭�2=305

03

Step 3. Divide the numbers

Now to simplify further, divide the resulting numbers to get

18+127鈭�2=307鈭�2=305=6

Thus, the value of the expression is 6.

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