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Chapter 1: Q 119. (page 39)

In the following exercises, evaluate each expression.

y+-14when

(a)y=-33

(b)y=30

Short Answer

Expert verified

(a)-47

(b) 16

Step by step solution

01

Part (a). Step 1. Given Information:

The given expression is y+-14and the value of the variable is y=-33.

02

Part (a). Step 2. Substitute the value:

Substitute -33for yinto the given expression y+-14.

-33+-14

03

Part (a). Step 3. Perform Subtraction:

Rewrite the obtained expression using the subtraction property, a+-b=a-b.

-33+-14=-33-14

Subtract 14 from -33.

-33-14=-47

04

Part (a). Step 4. Conclusion:

The value is -47.

05

Part (b). Step 1. Given Information:

The given expression is y+-14and the value of the variable is y=30.

06

Part (b). Step 2. Substitute the value:

Substitute 30 for yinto the given expression y+-14.

30+-14

07

Part (b). Step 3. Perform Subtraction:

Rewrite the obtained expression using the subtraction property, a+-b=a-b.

30+-14=30-14

Subtract 14 from 30.

30-14=16

08

Part (b). Step 4. Conclusion:

The value is 16.

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