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Chapter 2: Q. 436 (page 208)

In the following exercises, solve

(a)x=7

(b)y=-11

(c)z=0

Short Answer

Expert verified

The required solutions are

(a)x=卤7

(b) No solution

(c)z=0

Step by step solution

01

 Part (a) Step 1: Given information

x=7

02

Part (a) Step 2: Calculation

The equivalent equations are

x=-7orx=7鈬�x=卤7

03

Part (b) Step 1: Given information

y=-11

04

Part (b) Step 2: Calculation

No solution, since an absolute value is always positive .

05

Part (c) Step 1: Given information

z=0

06

Part (c) Step 2: Calculation

z=-0orz=0SInce-0=0鈬�z=0

The required solutions are

(a)x=卤7

(b)No solution

(c)z=0

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