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Chapter 1: Q19. (page 13)

Evaluate each expression.

18梅9+2鈰�6

Short Answer

Expert verified

The value of the expression 18梅9+2鈰�6is 14.

Step by step solution

01

Step 1. Order of operations.

In order to evaluate an expression, the order of operations must be followed, which is:

  1. Evaluate the expressions inside the bracket
  2. Evaluate the powers
  3. Multiply and/or divide
  4. Add and/ or subtract

The evaluation takes place from left to right.

02

Step 2. Divide 18 by 9.

As per the order of operations, first, divide 18 by 9.

18梅9+2鈰�6=2+2鈰�6

03

Step 3. Multiply from left to right.

To further evaluate multiply 2 by 6.

18梅9+2鈰�6=2+2鈰�6=2+12

04

Step 4. Apply addition operation.

Add 2 and 12.

18梅9+2鈰�6=2+2鈰�6=2+12=14

Therefore, the expression is equal to 14.

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