Lesson Example Discussion Quiz: Class Homework |
Step-1 |
Title: Solve the equation |
Grade: 8-a Lesson: S3-L1 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Lesson Steps
Step | Type | Explanation | Answer |
---|---|---|---|
1 |
Problem |
Solve the equation |
|
2 |
Formula: |
By using formula |
\$| x | = a \$ |
3 |
Hint |
By removing mod we get (+) (or) (-) |
\$x = a (or) x = - a\$ |
4 |
Step |
Here 'a' is '-7' |
\$-x + 2 = - 7(or) -x + 2 = - (- 7)\$ |
5 |
Step |
After multiplication |
\$-x + 2 = - 7(or)- x + 2 = 7 \$ |
6 |
Step |
Adding "- 2" on both sides |
\$- x + \cancel2 - \cancel2 = -7 - 2 (or) -x + \cancel2 - \cancel2 = 7 - 2 \$ |
7 |
Step |
After cancellation |
\$-x = - 9 (or)- x = 5 \$ |
8 |
Step |
Multiplying Negative sign on both sides |
\$-(-x) = - (-9) (or) -(-x) = - 5\$ |
9 |
Step |
After multiplication |
\$ x = 9 (or) x = - 5 \$ |
10 |
Answer |
A |
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