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Title: Calculate the equation

Grade: 8-a Lesson: S3-L6

Explanation: Hello Students, time to practice and review the steps for the problem.

Lesson Steps

Step	Type	Explanation	Answer
1	Problem	Calculate the equation \$ \| x + 1 \| - 2 = 1 \$
2	Step	Adding +2 on both sides we get	\$ \| x + 1 \| - \cancel2 + \cancel2 = 1 + 2 \$
3	Step	After cancellation we get	\$ \| x + 1 \| = 3 \$
4	Formula:	By using formula	\$\| x \| = a\$
5	Hint	By removing mod we get(+) or (-)	\$x = a (or) x = - a \$
6	Step	Here 'a' is '3'	\$ x + 1 = 3 (or) x + 1 = - 3 \$
7	Step	Adding - 1 on both sides we get	\$ x + \cancel1 - \cancel1 = 3 - 1 (or) x + \cancel1 - \cancel1 = - 3 - 1 \$
8	Step	After cancellation we get	\$ x = 2 (or) x = -4 \$
9		Answer	A

Step

Type

Explanation

Answer

Problem

Calculate the equation
\$ | x + 1 | - 2 = 1 \$

Step

Adding +2 on both sides we get

\$ | x + 1 | - \cancel2 + \cancel2 = 1 + 2 \$

Step

After cancellation we get

\$ | x + 1 | = 3 \$

Formula:

By using formula

\$| x | = a\$

Hint

By removing mod we get(+) or (-)

\$x = a (or) x = - a \$

Step

Here 'a' is '3'

\$ x + 1 = 3 (or) x + 1 = - 3 \$

Step

Adding - 1 on both sides we get

\$ x + \cancel1 - \cancel1 = 3 - 1 (or) x + \cancel1 - \cancel1 = - 3 - 1 \$

Step

After cancellation we get

\$ x = 2 (or) x = -4 \$

Answer