Lesson Example Discussion Quiz: Class Homework |
Step-3 |
Title: Substitue the different variable values in the expressions using fractions |
Grade: 6-a Lesson: S2-L8 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Lesson Steps
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
Determine the value of an expression when z = 3 |
\$ 3/4 - 5z - 9/z \$ |
2 |
Step |
Now substitute "z" value in expression |
\$ 3/4 - 5(3) - \cancel9^3/\cancel3^1 \$ |
3 |
Step |
After multiplication we get |
\$ 3/4 - 15 - 3 \$ |
4 |
Step |
Taking LCM as 4 |
\$ (3 \times 1 - 15 \times 4 - 3 \times 4)/4 \$ |
5 |
Step |
After multiplication we get |
\$ (3 - 60 - 12)/4 \$ |
6 |
Step |
After adding we get |
\$ (3 - 72)/4 \$ |
7 |
Step |
After subtracting |
\$ - 69/4 \$ |
8 |
Answer |
A |
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