Lesson Example Discussion Quiz: Class Homework |
Example |
Title: Find the variable value in the equation |
Grade: 7-a Lesson: S1-L2 |
Explanation: The best way to understand algebra is by looking at some examples. Take turns and read each example for easy understanding. |
Examples:
1. Find the value of 'm' in \$12m + 4 = 48 - m\$.
Step 1a
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Given equation is that, \$12m + 4 = 48 + m\$ |
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Explanation:
Given equation is that, \$12m + 4 = 48 + m\$. It is a linear equation with one variable in "m". |
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Step 1b
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Move the like terms to one side. |
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Explanation: Move the like terms to one side of the equation and perform operations among them. i.e, move constant terms to one side. \$12m + 4 = 48 - m\$ |
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Step 1c
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Now, solve for "m" |
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Explanation:
Divide both sides of the equation with 11. ⇒ \$11m = 44\$ ⇒ \$(11m)/11 = 44/11\$ ⇒ \$((cancel11^1)m)/cancel11^1 = cancel44^4/cancel11^1\$ ⇒ \$(1m)/1 = 4/1\$ ⇒ \$m = 4\$ |
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