SaiBook.us Algebra

Example

Title: Determine the value of the expression

Grade: 7-a Lesson: S1-L7

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 expression \$6/h + h/2\$ by substituting the value of \$h = 2\$

Step 1a

Given expression.

Explanation: Given expression is \$6/h + h/2\$ and value of \$h = 2\$

Step 1b

Substitute the value of variable.

Explanation: Substitute the value of variable in term and perform operation.

⇒ \$6/h + h/2\$

⇒ \$6/2 + 2/2\$

Since the denominators are same, we can simply add the numerators.

⇒ \$(6+2)/2\$

⇒ \$8/2\$

Cancel numerator and denominator with 2.

⇒ \$cancel8^4/cancel2^1\$

⇒ \$4/1\$

⇒ \$4\$