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Step-2

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 + 4 \| - 2 = 5 \$
2	Step	Adding + 2 on both sides we get	\$ \| x + 4 \| - \cancel2 + \cancel2 = 5 + 2 \$
3	Step	After cancellation we get	\$ \| x + 4 \| = 7 \$
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 '7'	\$ x + 4 = 7 (or) x + 4 = - 7 \$
7	Step	Adding - 4 on both sides we get	\$ x + \cancel4 - \cancel4 = 7 - 4 (or) x + \cancel4 - \cancel4 = - 7 - 4 \$
8	Step	After cancellation we get	\$ x = 3 (or) x = -11 \$
9		Answer	C

Step

Type

Explanation

Answer

Problem

Calculate the equation
\$ | x + 4 | - 2 = 5 \$

Step

Adding + 2 on both sides we get

\$ | x + 4 | - \cancel2 + \cancel2 = 5 + 2 \$

Step

After cancellation we get

\$ | x + 4 | = 7 \$

Formula:

By using formula

\$| x | = a\$

Hint

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

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

Step

Here 'a' is '7'

\$ x + 4 = 7 (or) x + 4 = - 7 \$

Step

Adding - 4 on both sides we get

\$ x + \cancel4 - \cancel4 = 7 - 4 (or) x + \cancel4 - \cancel4 = - 7 - 4 \$

Step

After cancellation we get

\$ x = 3 (or) x = -11 \$

Answer