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Step-1

Title: Determine the value of an expression

Grade: 7-b Lesson: S3-L3

Explanation: Hello Students, time to practice and review the steps for the problem.

Lesson Steps

Steps	Problem	Solution
1	Determine the value of an expression at \$x = 3/2\$ & \$y = 4 \$	\$ xy + 1/(xy) \$
2	Now substitute the values \$x = 3/2\$ & \$y = 4 \$ in the expression	\$ (3/2)(4) + 1/(3/2 * 4) \$
3	After simplification	\$ \cancel12^6/\cancel2^1 + 1/(\cancel12^6/\cancel2^1) \$
4	After cancelation	\$ 6 + 1/6 \$
5	Take LCM as '\$6\$'	\$ (36 + 1)/6 \$
6	After Addition	\$ 37/6 \$
7	Answer	A : \$ 37/6 \$

Steps

Problem

Solution

Determine the value of an expression at
\$x = 3/2\$ & \$y = 4 \$

\$ xy + 1/(xy) \$

Now substitute the values \$x = 3/2\$ & \$y = 4 \$ in the expression

\$ (3/2)(4) + 1/(3/2 * 4) \$

After simplification

\$ \cancel12^6/\cancel2^1 + 1/(\cancel12^6/\cancel2^1) \$

After cancelation

\$ 6 + 1/6 \$

Take LCM as '\$6\$'

\$ (36 + 1)/6 \$

After Addition

\$ 37/6 \$

Answer

A : \$ 37/6 \$