Lesson Example Discussion Quiz: Class Homework |
Example |
Title: Find the variable value of equation |
Grade: 7-a Lesson: S3-L5 |
Explanation: The best way to understand algebra is by looking at some examples. Take turns and read each example for easy understanding. |
Examples:
1. Solve \$b/2 + 4 = 9\$ .
Step 1a
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Given equation. |
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Explanation: Given equation \$b/2 + 4 = 9\$. |
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Step 1b
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Solve for b |
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Explanation:
\$b/2 + 4 = 9\$ \$=> (b + 4(2))/2 = 9\$ \$=> (b + 8)/2 = 9\$ \$=> (b + 8)/2 times 2 = 9 times 2\$ \$=> (b + 8)/cancel2^1 times cancel2^1 = 9 times 2\$ \$=> (b + 8)/1 times 1 = 18\$ \$=> b + 8 = 18\$ \$=> b = 18 - 8\$ \$=> b = 10\$ |
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