Lesson Example Discussion Quiz: Class Homework |
Step-2 |
Title: Calculate the equation |
Grade: 8-a Lesson: S3-L8 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Lesson Steps
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
Calculate the equation |
|
2 |
Step |
Adding '- 7' on both sides we get |
\$ 7| x + 5 | + \cancel7 - \cancel7 = 6 - 7 \$ |
3 |
Step |
After cancellation we get |
\$ 7| x + 5 | = - 1 \$ |
4 |
Step |
Dividing on both sides by '7' we get |
\$ \cancel7/\cancel7| x + 5 | = -1/7 \$ |
5 |
Step |
After cancellation we get |
\$ | x + 5 | = -1/7 \$ |
6 |
Formula: |
By using formula |
\$| x | = a\$ |
7 |
Hint |
By removing mod we get(+) or (-) |
\$x = a (or) x = - a \$ |
8 |
Step |
Here 'a' is \$-1/7\$ |
\$ x + 5 = -1/7 (or) x + 5 = - (-1/7) = 1/7 \$ |
9 |
Step |
Adding '- 5' on both sides we get |
\$ x + \cancel5 - \cancel5 = - 1/7 - 5 (or) x + \cancel5 - \cancel5 = 1/7 - 5 \$ |
10 |
Step |
After cancellation we get |
\$ x = - 1/7 - 5 (or) x = 1/7 - 5 \$ |
11 |
Hint |
Taking LCM as '7' |
|
12 |
Step |
After simplification |
\$ x = (-1 - 35)/7 (or) x = (1 - 35)/7 \$ |
13 |
Step |
After simplification |
\$ x = (-1 - 35)/7 (or) x = (1 - 35)/7 \$ |
14 |
Step |
After simplification we get |
\$ x = -36/7 (or) x = - 34/7 \$ |
15 |
Answer |
D |
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