Lesson Example Discussion Quiz: Class Homework |
Example |
Title: Substitute the varible value in the expression |
Grade: 8-a Lesson: S2-L1 |
Explanation: The best way to understand algebra is by looking at some examples. Take turns and read each example for easy understanding. |
Examples:
1. Determine the value of expression \$i/j + j/k - k/i\$ when i = 1, j = 2 and k = 2.
Step 1a
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The given expression is, \$i/j + j/k - k/i\$. |
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Explanation:
The given expression is, \$i/j + j/k - k/i\$. The expression contains variable in 'i', 'j' and 'k'. |
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Step 1b
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Substitute the values of the variables in the expression. |
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Explanation:
Substitute the values of the variables and perform operations. ⇒ \$i/j + j/k - k/i\$ ⇒ \$1/2 + 2/2 - 2/1\$ Perform operations according to PEMDAS rule. ⇒ \$1/2 + 2/2 - 2/1\$ ⇒ \$(1 + 2 - 4)/2\$ ⇒ \$(3- 4)/2\$ ⇒ \$- 1/2\$ |
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