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Chapter 1: Q83. (page 18)

Evaluate each expression if a=2,b=-34,and c=1.8.

8b-5

Short Answer

Expert verified

Expression 8b-5 results into -11

Step by step solution

01

- Order for simplification 

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

- Substitute given values

Substitute -34for b into given expression

8b-5=8-34-5

03

- Simplify 8-34-5

To evaluate, firstly perform multiplication and finally subtraction from left to right to get

8鈭�34鈭�5=鈭�8脳34鈭�5=鈭�6鈭�5=鈭�11

Thus, 8b-5=-11

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Evaluate each expression

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Information at the left

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Use the following information.

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