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Chapter 1: Q10. (page 8)

Evaluate each expression ifx=4,y=鈭�2, andz=6

10. z-x+y

Short Answer

Expert verified

Expressionz-x+y results into 0.

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

Simplify from left to right.

Subtract x from z, then add resultant with y.

Substitute 4 for x, -2for y and 6 for z into given expression

z-x+y=6-4+-2

03

- Simplify 6-4+-2

Follow order of simplification

6鈭�4=2

Then2+鈭�2=0

Thus, z鈭�x+y=0

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