Lesson Example Discussion Quiz: Class Homework |
Example |
Title: Find the variable value in the equation |
Grade: 7-a Lesson: S1-L4 |
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 'n' in \$6n + 1 = 2n + 37\$.
Step 1a
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Given equation is that, \$6n + 1 = 2n + 37\$. |
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Explanation:
Given equation is that, \$6n + 1 = 2n + 37\$. It is a linear equation with one variable in "n". |
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. \$6n + 1 = 2n + 37\$ |
Step 1c
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Now, solve for "n" |
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Explanation:
Divide both sides of the equation with 4. ⇒ \$4n = 36\$ ⇒ \$(4n)/4 = 36/4\$ ⇒ \$((cancel4^1)n)/cancel4^1 = cancel36^9/cancel4^1\$ ⇒ \$(n)/1 = 9/1\$ ⇒ \$n = 9\$ |
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